Changelog

Insight adds two new endpoints - one to lookup a token based on symbols and one to retrieve an NFT collection's metadata.
Token Lookup
Search for tokens by their symbol across 6000+ tokens.
Symbols are not unique nor strictly curated however, so be careful with how you use them!
To fetch all tokens with symbol ETH
on Ethereum and B3
Try it out in our playground

Collection Metadata
Get metadata about an NFT collection.
By including a include_stats=true
query param, you can also get the following statistics about a collection:
owner_count
- Amount of distinct addresses that hold the NFTsmint_count
- Amount of NFT tokens that have been mintedtoken_count
- Amount of distinct token IDs that currently existtotal_quantity
- Amount of tokens that currently exist
Try it out in our playground

📖 Learn more about Insight - it’s open source and ready to power your applications!

We're excited to announce that thirdweb Insight has expanded its blockchain data querying capabilities to 84 chains, adding these 17 new chains:
- Shape
- Unichain Sepolia
- Forma
- Flare
- Flare Coston2
- Berachain
- Berachain Bepolia
- Plume testnet
- Lens
- Mode testnet
- Blast Sepolia
- Arbitrum Nova
- World Chain Sepolia
- 0g Newton testnet
- Scroll Sepolia
- Linea Sepolia
- MegaETH testnet
What This Means For Developers
With these additions, you can now use all of Insight's powerful features across these new chains.
Try them out on the playground!
View All Supported Chains
For a complete list of supported chains and their respective chain IDs, check the thirdweb chainlist.
📖 Learn more about Insight - it’s open source and ready to power your applications!

We've added support for MAGIC on Treasure (61166) and GHO on Lens (232) to our Universal Bridge, bringing the total number of routes available to over 35,000. Check out the full API reference here to get started, or try it in the playground.

We’ve rolled out a series of performance upgrades across the board to make NFT metadata queries faster, smarter, and more reliable than ever.
What Changed?
⚡ Unified Fetching for NFT Data
- NFT metadata, ownership info, and token data are now pulled in a single optimised query internally, reducing the number of round trips and improving latency consistency.
- This makes NFT-related endpoints much more consistent at scale.
🧠 Smarter Metadata Handling
- Metadata is now fetched on-demand only when needed, skipping unnecessary lookups for already known or irrelevant data.
- We've introduced a system to automatically skip refetching metadata that’s deemed not worth roundtrips — improving efficiency without losing accuracy.
🪄 Parallel Processing & Query Optimizsation
- Queries for metadata are now parallelised, making better use of compute resources.
- Owner and balance aggregations are now handled more effectively, ensuring both speed and correctness in multi-owner or high-traffic collections.
🛠️ Critical Bugfix for NFT Transfers
- Fixed a major issue where NFT transfers were duplicated across chains. Transfer data is now properly filtered per chain, ensuring clean and accurate results.
- Transfer endpoints now properly correlated to chain identification to avoid any confusion in multichain contexts.
🔁 Same Gains for Fungible Tokens (ERC20)
All of these improvements won’t just apply to NFTs — we’re extending the same performance, consistency, and metadata logic enhancements to ERC20 tokens as well.
🔁 What's next? All of these improvements won’t just apply to NFTs — we’re extending the same performance, consistency, and metadata logic enhancements to ERC20 tokens as well.
💡 Result? lower and more predictable response times, better metadata hygiene, and fewer redundant operations — even across large multichain datasets.
Let us know what you think — or better yet, try it out and feel the speed.

Ever wondered if your token is supported on Universal Bridge? You can check all routes for a given token using the routes page. Search by chain ID, token address, token symbol, or name for all origin and destination routes. You can access the site at thirdweb.com/routes.

You can use the transactions
array returned by a Universal Bridge prepared quote to easily execute a full route from origin to destination. This pattern is now even easier with transaction action
fields included to denote what each transaction does. The most important of these actions is the approval
type, which represents a pre-assembled approval transaction. The approval will account for the sender's existing set allowance and what token is needed for the next step.
A quote response might look something like this:
To execute this bridge with the TypeScript SDK, use sendAndConfirmTransaction
to send each transaction, and wait for a successful Bridge.status
response for each non-approval transaction:
It's that easy to implement bridging and swapping in your app. Want to get started? You can find the full API reference here.

Insight now supports webhooks so you can build pipelines and receive notifications when specific blockchain events or transactions occur!
What does this mean?
With the introduction of webhook support in Insight, you can now seamlessly integrate blockchain data into your applications or workflows. Webhooks allow you to automatically receive near real-time notifications whenever specific blockchain events or transactions occur, eliminating the need for constant polling of the blockchain.
What can I do with it?
- Automate Workflows: Trigger actions in your applications or services when a specific blockchain event happens (e.g., a token transfer, contract interaction, or wallet activity).
- Monitor Blockchain Events: Stay updated on relevant events without manually querying the blockchain.
- Build Custom Pipelines: Use webhooks to feed blockchain data into analytics tools, databases, or other systems for further processing.
- Filter Specific Data: Configure webhooks to only receive notifications for events or transactions that meet your specific criteria, such as a particular contract address or event type.
Can I receive decoded events and transactions?
Yes! Insight webhooks provide decoded data for events and transactions. This means you’ll receive human-readable payloads that include all relevant details, such as parameters and values associated with the event or transaction. This makes it easier to process and use the data directly in your applications without additional decoding steps.
To enable this, you have to define specific event signatures / function signatures and partial ABIs in the webhook filter configurations.
For more details on setting up and managing webhooks, visit the following resources:
📖 Learn more about Insight - it’s open source and ready to power your applications!


We’ve released the Agglayer Module, designed to enable secure and seamless cross-chain transfers of ERC-20 tokens using Agglayer, an interoperability protocol. Learn more about Agglayer.
Please note: This module is currently in beta while the Agglayer bridge is not live in implementation. This means deployments are limited to Sepolia and Cardona as it requires Ethereum as an L1 and zkEVM as L2.
🧩 What is it?
The Agglayer Module is a module contract that can be added to any ERC-20 modular contract built with thirdweb’s modular framework. It allows developers to bridge ERC-20 tokens across any EVM-compatible chain.
🌐 Why it matters
As the Ethereum ecosystem continues to grow with the introduction of more Layer 2 networks, fragmented liquidity and isolated user experiences have become major challenges. Without interoperability, assets are locked within specific chains, limiting usability and adoption.
The Agglayer Module helps address this by enabling interoperability at the contract level—allowing tokens to move freely across chains, reducing fragmentation, and improving the overall developer and user experience.
✅ Key Benefits
- EVM-compatible – Works across all EVM chains
- Modular and upgradeable – Can be installed or removed from any ERC-20 modular contract
- Dashboard integration – Easily install through the thirdweb dashboard with no additional configuration
- Cross-chain functionality – Mint tokens and send them to other chains seamlessly
⚠️ Requirements
- The module currently only works with ERC-20 modular contracts
- It must be installed on the contract in order to function
🛠 How to use it
- Use or deploy an ERC-20 modular contract
- Add the Agglayer Module through the thirdweb dashboard
- Mint and bridge tokens as needed
As always, please don't hesitate to contact us for any questions or support.

Insight added support for querying a wallet's transactions (both inbound and outbound). Previously this had to be two separate queries, but can now be done by a single query.
Try it out in our playground

To fetch a wallet's transactions on Ethereum
📖 Learn more about Insight - it’s open source and ready to power your applications!

With v5.93.0 of the TypeScript SDK, we've added full beta functionality for thirdweb's new Universal Bridge. The bridge currently covers 50+ chains and over 30,000 routes.
- Bridge.Buy - Specify an exact destination amount to receive
quote
: Get estimates without a wallet connectionprepare
: Get finalized quotes with transaction data
- Bridge.Sell - Specify the exact origin amount to send
quote
: Get estimates without a wallet connectionprepare
: Get finalized quotes with transaction data
How to Send Transactions
When you call prepare
, you might get multiple transactions back. You must send all transactions in order and sequentially for the full route to succeed. Before sending each transaction, call Bridge.status
for the previous transaction until it returns COMPLETED
. Do not simply wait for the transaction receipt, as this doesn't account for the destination chain transaction (if there is one).
The transactions returned do not include approvals. Send any necessary approvals before their corresponding transactions.
Route Discovery & Transaction Tracking
- Bridge.routes - Advanced function to discover and filter available bridge routes
- Filter by token address, chain ID, or both
- Full pagination support with customizable limit and offset
- Bridge.status - Comprehensive transaction status tracking
- Clear status indicators: "COMPLETED", "PENDING", "FAILED", or "NOT_FOUND"
- Detailed transaction reporting including origin and destination amounts and chains
Types
- Standardized error handling with descriptive, formatted error messages
- Four underlying types are exported for use with the bridging functions:
Route
: Defines bridge routes between chains and tokensStatus
: Represents bridge transaction status dataQuote
: Contains detailed bridge transaction quote informationPreparedQuote
: Extends Quote with complete transaction data
Implementation Examples
Bridge.Buy Usage Example
Bridge.Sell Usage Example
Route Discovery Example
Transaction Status Monitoring Example
Error Handling Implementation
Module Integration
The Bridge module is accessible as a top-level export:
Use Bridge.Buy
, Bridge.Sell
, Bridge.routes
, and Bridge.status
to access the corresponding functionality.
Or, import the functions directly from the module:

We've built Universal Bridge to allow your users to use any asset on any chain, and it's ready for you to try.
This integration simplifies onchain asset trading, and we've added extensions in .NET to integrate with any IThirdwebWallet
nicely.
Core APIs
The design is akin to letting us know what your intent is.
- Buy: "I want to buy x USDC on y Chain using z Token"
- Sell: "I want to sell x USDC on y Chain for z Token"
- Transfer: "Just transfer all my money to vitalik"
We will return the transactions needed to achieve whatever you desire.
You may then handle execution yourself or use our extensions.
Instantiation
Buy - Get a quote for buying a specific amount of tokens
Buy - Get an executable set of transactions (alongside a quote) for buying a specific amount of tokens
Sell - Get a quote for selling a specific amount of tokens
Sell - Get an executable set of transactions (alongside a quote) for selling a specific amount of tokens
Transfer - Get an executable transaction for transferring a specific amount of tokens
Why not just transfer with the SDK? Stay tuned for webhooks, think direct payments!
Manual Execution
This is not production code, we're just showcasing some of the APIs that would help you execute and poll status here.
Managed Execution
The SDK comes with some extensions that you'll see on a lot of ThirdwebBridge
objects, and the main one is Execute.
Links
.NET Release | NuGet Release | Unity Release
Documentation | Support

We've built Universal Bridge to allow your users to use any asset on any chain, and it's ready for you to try. If you're interested in joining the private beta for Universal Bridge, complete this form (or reach out to anyone from the thirdweb team).
Who's It For?
Do you need to accept fiat and crypto payments in your app? Are you struggling to find reliable onchain liquidity for swaps? Are you tired of implementing bespoke bridges for multiple chains? Universal Bridge is for you.
What Is It?
Bridging, swapping, and accepting payments each bring their own challenges. The existing options are unreliable, complicated, and reliant on poor design choices. Universal Bridge is the easiest way to route assets in your app. Swap tokens, bridge between chains, onramp assets, accept onchain payments, and more all with a simple, unified API.
We already support 30,000+ routes across 50+ chains and are adding more every day. We're running detailed routing and reliability tests across all of them to guarantee a great experience for users.
How's It Work?
Universal Bridge uses a combination of existing protocols and onramps with thirdweb's own onchain and off-chain infrastructure for maximum coverage and reliability. The result is a "best case scenario" for buying, selling, and transferring assets between any EVM chain.
How Can I Try It?
Our Private Beta starts today, and your app can be one of the first to use it. Just complete this form or reach out to anyone on the team to get access. Or, try the playground widget here.

We're excited to announce that thirdweb Insight has expanded its blockchain data querying capabilities to 67 chains, including these 7 new chains:
What This Means For Developers
With these additions, you can now use all of Insight's powerful features across these new chains.
Try them out on the playground!
View All Supported Chains
For a complete list of supported chains and their respective chain IDs, check the thirdweb chainlist.
📖 Learn more about Insight - it’s open source and ready to power your applications!

We've revamped our metadata storage and refresh mechanisms to provide a more reliable, scalable, and efficient experience when working with NFT collections metadata through Insight!
What’s New?
More Reliable Metadata Storage
- Replaced the previous caching approach with a more permanent storage solution, ensuring faster retrieval and better consistency across requests.
- Metadata is now stored and accessed in a way that eliminates potential inconsistencies, making it the single source of truth for retrieval.
Explicit Force Refresh Endpoints
To give developers more control, we’ve introduced dedicated API endpoints for refreshing metadata on demand:
- Collection Metadata Refresh
GET v1/nfts/metadata/refresh/:contract_address
- Token Metadata Refresh
- Both endpoints fully support multichain operations via
chain
query parameters. - Refreshing token metadata also ensures collection-level metadata stays up to date.
Why This Matters
✅ Improved Data Consistency – Eliminates mismatches between different layers, ensuring metadata stays accurate.
✅ Simplified Architecture – No more juggling between temporary and permanent storage solutions.
✅ Better Scalability – Optimized for large-scale metadata operations, enabling more efficient handling of growing datasets.
✅ Multichain-Ready – Works seamlessly across chains, just like you’re used to.
What’s Next?
We’re actively working on further performance optimizations by consolidating multiple separate queries into more efficient, single-fetch operations. This will unlock even faster metadata retrieval without sacrificing accuracy. Stay tuned with more updates to thirdweb Insight! 🚀

This new update includes several changes to the tools in thirdweb MCP (Model Context Protocol) Server – improving overall accuracy in tool selection and speed performance for some onchain queries.
Improvement and Fixes
- Improved onchain query performance and tool selection
- Fixed Engine service auth requests that were not configured properly
- Updated
thirdweb-ai
tov0.1.4
(see full changelog)
A few prompts and guide to try out:
Always provide a fully valid wallet address, and include chain id along with the chain name.
Upgrade Guide

This new update focuses on improving the accuracy of tool selection by consolidating tools, picking better default values, and giving developers the ability to override tool description prompts.
New Features
- Override service tools' description prompts
Improvements
- Insight always requests with most recent and decoded data
- Insight performance improvement by using the correct sort key
- Updated
resolve
tool prompt to provide a more accurate description - Reduced number of tools with similar functionality:
- Merged
get_contract_abi
intoget_contract_metadata
- Merged
get_contract_events_by_signature
intoget_all_events
- Merged
Bug Fixes
- Fixed invalid auth for Engine requests due to headers not being set correctly
- Fixed some invalid paths or bodies for Engine and Insight tools
- Fixed improper schema error from OpenAI Agents adapter when a tool schema contains
anyOf
,oneOf
, orallOf
Upgrade Guide

We just released a new live playground that lets you customize and interact with the Universal Bridge via the prebuilt UI component.
Try it out at: https://playground.thirdweb.com/connect/pay

The playground lets you customize:
- Payment mode: fund wallets, direct payments or onchain transactions
- Price, chain and token information
- Payment methods
- Metadata
- Theme
- Gas sponsorship
Every customization shows you the changes in a live preview, as well as the corresponding code to copy paste into your projects.
Happy building! 🛠️

We're excited to announce the first release of thirdweb ai, a powerful Python library (TypeScript coming soon) that enables AI agents to interact with any EVM chains autonomously using thirdweb. This is a significant step forward in our mission to make web3 more accessible and empower developers to build the next generation of AI-powered onchain applications.
Why thirdweb ai?
As Large Language Models (LLMs) and AI Agents continue to evolve as transformative technologies, we recognized the need for these systems to interact with blockchain networks autonomously. We believe that giving AI agents the ability to perform onchain actions based on real-time data will unlock new possibilities.
What Can You Build?
With thirdweb ai, you can create AI agents that:
- Manage wallets and transactions securely using Engine
- Retrieve and analyze on-chain data in real-time using Insight
- Delegate complex onchain executions to Nebula agents
All of this functionality integrates smoothly with the AI agent framework of your choice, including OpenAI Agents, LangChain, AgentKit, GOAT, AutoGen, LlamaIndex, and many more.

Getting Started
Installation
Install the core package with all adapters:
Or choose specific framework adapters:
See here for the full list of supported framework and installation guides.
Basic Usage
Framework Integration Examples
OpenAI Agents
LangChain
Developer Resources
LLM Integration
When building applications that integrate LLMs with thirdweb's blockchain capabilities, you can enhance your results by including thirdweb context files:
- Basic context: https://portal.thirdweb.com/llms.txt
- Comprehensive context: https://portal.thirdweb.com/llms-full.txt
Learn More
- Check out our GitHub repository for more examples
Get started with thirdweb-ai today and join us in building the future of onchain AI agents!

We just shipped a big upgrade to partner management for ecosystems. You can now specify what type of signatures are permitted for each partner, as well as granular controls on what exactly can be signed. As an ecosystem owner, this means you have full control of what each partner is able to do with your user's ecosystem wallets, like restricting to particular assets or actions.
In your ecosystem dashboard, you'll find a new option for "Access Control" when you create or edit an ecosystem partner. You can setup these signing restrictions in 2 ways: your own server verification, or built in rules.
Server verification
This is the most flexible and powerful option - every signature request will flow through your own server and you get to perform your own logic for allowing or disallowing a particular signature.

The response from your sever should just be a simple JSON body with the following format.
Built-in rules
You can also set your rules directly in the dashboard. These include what signature types you would like to allow, and granular permissions per signature type, like the chain, contract addresses or function selectors that are allowed to be called.

For ecosystems that use smart accounts, since those require personal_sign signatures, we've added a user operation filter that lets you control which smart account operations are allowed to be signed by the ecosystem wallets.

These controls are low level and powerful, letting you tightly control what can and cannot be done with wallets on a per-partner basis.
We're continuously improving this UI to make it easier for ecosystem owners to setup these rules. Your feedback is appreciated and help us make this product better for everyone!
We're excited to announce improvements to our Token and NFT APIs in Insight. We've recently added support to get all token transfers by owner, wallet, and token contracts. We've also included in this release major performance improvements to existing NFT endpoints.
The following endpoints are now available to use.
Get NFT Transfers by Wallet
Retrieve all NFT transfers by wallet address. Supports ERC1155 and ERC721.
Get Transfers by Contract
Get all token transfers for a contract address. Supports ERC20, ERC1155, and ERC721.
Get Transfers by Wallet
View all token transfers for a wallet address. Supports ERC20, ERC1155, and ERC721.
Get Transfers by Transaction
Get all token transfers in a transaction. Supports ERC20, ERC1155, and ERC721.
Resources

With the latest dashboard update, users can now view their invoices directly in thirdweb for easy management.
- Invoice history, amount, and details are available at a glance.
- Download the full invoice pdf document to see breakdown of charges by usage and plan.
To view your invoices, login to thirdweb and navigate to Settings > Invoices.

For any feedback or support inquiries, please visit our support site.

We’re pleased to announce a more robust contract verification process, now featuring a dedicated Etherscan verification status check and final result reporting. This means you can confidently verify your contracts—proxy or otherwise—knowing you’ll receive a much more clear outcome every time.
Added Verification Status Check and Final Result Return
- Introduced extra logic to check for verification status on Etherscan-like explorers, which polls for verification completion.
- This now returns the final verification result (e.g., "success," "failure," or "already verified") instead of just the receipt GUID.
Fixed Constructor Parameter Fetching for Proxy Contracts
- Fixed some corner cases where we should use the implementation address when verifying proxied contracts with constructor parameters.
We hope this streamlined verification workflow reduces the friction of contract verifications and helps you focus on delivering great applications. Happy building!

We're excited to announce an important update to our RPC edge infrastructure at thirdweb. This enhancement is designed to improve performance and reduce costs for our users.
🚀 What’s New?
- Response Compression at RPC Edge:
We’ve enabled response compression, meaning our RPC endpoints now deliver compressed responses to reduce data size and speed up transmission. - Cost Reduction for Users:
With smaller payloads, users can enjoy reduced bandwidth usage and lower overall costs when interacting with our servers. - New Request Requirement:
To take full advantage of this update, you need to add anAccept-Encoding
header to your requests. This tells our servers that your client can handle compressed responses.
🛠️ How to Use the New Feature
Simply include the Accept-Encoding
header in your API requests. For instance, if you're calling the eth_blockNumber
method using our RPC endpoint, you can use the following curl example:
In this example:
- The
Accept-Encoding: gzip
header signals that your client accepts gzip-compressed responses. - The JSON payload makes a call to
eth_blockNumber
to retrieve the latest block number.
🎉 Conclusion
This update is part of our continuous effort to enhance performance and efficiency. We’re committed to providing you with the best tools and infrastructure for your development needs. If you have any feedback or questions, please don’t hesitate to reach out.

We're excited to announce that thirdweb Insight has expanded its blockchain data querying capabilities to 61 chains, including these 19 new chains:
- zkSync
- Mantle
- Abstract mainnet and testnet
- Zora
- World
- Hedera
- Laos
- Rivalz
- Basecamp
- Beam
- Sonic
- Cronos zkEVM
- Taiko mainnet and testnet
- Celo testnet
- Arena Z testnet
- Treasure Topaz testnet
- Monad testnet
What This Means For Developers
With these additions, you can now use all of Insight's powerful features across these new chains.
Try them out on the playground!
View All Supported Chains
For a complete list of supported chains and their respective chain IDs, check the thirdweb chainlist.
📖 Learn more about Insight - it’s open source and ready to power your applications!

You can now view the list all sponsored transactions across in a team by going to your Team > Usage Page in thirdweb dashboard

You can also view this table in your Team > Project > Connect > Account Abstraction > Analytics page to see only sponsored transactions for the selected project


The thirdweb SDK comes with built-in tree-shaking, meaning your application only keeps what it uses from the SDK. However, we still like to keep the overall package size as small as possible for convenience while you're running your application in development. With version 5.92.0 we've reduced the package install size by more than 25%, from 199 MB to 144 MB. See the latest here.
MediaRenderer Changes
Unfortunately, this means we've had to remove support for 3D models in the media renderer. You can still display 3D model NFTs in your application using our IPFS resolvers and Three.js or a similar library.
We're excited to announce the release of additional NFT API endpoints to Insight. These endpoints provide comprehensive APIs for accessing NFT metadata, transfers, ownership information, and more. The NFT API provides a great alternative for developers looking to migrate from SimpleHash, which is expected to shutdown on March 27th.
The endpoints below are now available to use.
NFT Tokens API
Get NFTs by Contract
Retrieve all NFTs from a specific contract address.
Get NFT by Token ID
Fetch data for a specific NFT using its contract address and token ID.
Get NFTs by Owner
List all NFTs owned by a specific wallet address across all contracts.
NFT Transfers API
Get NFT Transfers by Contract
Track all transfer events for a specific NFT contract with optional metadata.
Get NFT Transfers by Token
View the complete transfer history for a specific NFT token with optional metadata.
Get NFT Transfers by Transaction
Retrieve all NFT transfers that occurred within a specific transaction with optional metadata.
NFT Ownership API
Get NFT Owners by Contract
List all current owners of NFTs from a specific contract.
Get NFT Owners by Token
Identify the current owners of a specific NFT token.
Resources

We’re excited to introduce significant upgrades Nebula's transaction execution. Our latest model, t0-003, is more capable, accurate, and intelligent—enabling seamless execution of complex, multi-step prompts.
With expanded support for bridging, swapping, and multi-transaction workflows, developers can now perform actions like retrieving balances, executing transfers across chains, and handling approvals in a single streamlined process.
Improvements
- New model:
t0-003
— more capable, higher accuracy and smarter- Supports complex prompts that involve multi-step instructions
- For example:
- Bridging and swapping with more chains and more token routes supported
- Supports multiple transactions, for example, approve and transfer. Wallets will need to execute the transactions in order.
- The chat completion API may consist of multiple
unsigned_transaction
in theactions
Nebula is currently in Alpha for a select number of developers. For access to the product, please sign up on the Nebula waitlist.
For any feedback or support inquiries, please visit our support site.

Querying token prices in USD is now supported by Insight API!
Try it out in our playground

To fetch a token's price by its contract address
(0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
is used for native tokens)
Response
You can optionally define a timestamp and the API will return the closest data it has to that timestamp.
To fetch token prices by symbol
Note that there can be multiple tokens with the same symbol
We support more than 6000 tokens currently and keep adding more.
We also provide an endpoint to fetch the list of supported tokens for each chain.

📖 Learn more about Insight - it’s open source and ready to power your applications!

Insight API will deprecate all camelCase fields from responses and remove them by 30th of March 2025. Every field that was previously in camelCase has a duplicate field in snake_case for the time being, allowing users to migrate their response handling.
List of affected fields:
decodedData
- New name:
decoded
- Affected endpoints
v1/transactions
(in case ofdecode=true
query param)v1/transactions/:contractAddress
(in case ofdecode=true
query param)v1/transactions/:contractAddress/:signature
v1/events
(in case ofdecode=true
query param)v1/events/:contractAddress
(in case ofdecode=true
query param)v1/events/:contractAddress/:signature
- New name:
decodedData.indexedParams
anddecoded.indexedParams
- New name:
indexed_params
- Affected endpoints
v1/events
(in case ofdecode=true
query param)v1/events/:contractAddress
(in case ofdecode=true
query param)v1/events/:contractAddress/:signature
- New name:
decodedData.nonIndexedParams
anddecoded.nonIndexedParams
- New name:
non_indexed_params
- Affected endpoints
v1/events
(in case ofdecode=true
query param)v1/events/:contractAddress
(in case ofdecode=true
query param)v1/events/:contractAddress/:signature
- New name:
chainId
- New name:
chain_id
- Affected endpoints
v1/tokens/erc20/:ownerAddress
v1/tokens/erc721/:ownerAddress
v1/tokens/erc1155/:ownerAddress
- New name:
tokenAddress
- New name:
token_address
- Affected endpoints
v1/tokens/erc20/:ownerAddress
v1/tokens/erc721/:ownerAddress
v1/tokens/erc1155/:ownerAddress
- New name:
tokenId
- New name:
token_id
- Affected endpoints
v1/tokens/erc721/:ownerAddress
v1/tokens/erc1155/:ownerAddress
- New name:
Example of a decoded data response
It should be noted that the properties in indexed_params
and non_indexed_params
could be any format, because they are based on how the smart contract was programmed.
Example of a token response
📖 Learn more about Insight - it’s open source and ready to power your applications!

We’re excited to share that Thirdweb now better aligns with Etherscan’s latest V2 API. If you regularly need to have your contracts verified on Etherscan-like explorers, this change means a more streamlined, less error-prone experience - so you can spend more time shipping, and less time wrestling with parameters. One click on the Thirdweb dashboard is all it takes!

What’s New
- V2 API Readiness: Our system automatically targets Etherscan V2 endpoints for the correct chain, minimising manual setup and reducing the possibility of misconfiguration.
- Future-Proofing: This approach lays the groundwork for supporting additional block explorer APIs with minimal friction, ensuring that Thirdweb utilities remains flexible and up-to-date.
Why It Matters
The goal behind these changes is to make verifying your smart contracts as hassle-free as possible. By cutting down on repetitive parameters and streamlining the integration with Etherscan V2, we’ve drastically reduced the chance of errors. Ultimately, we want you to focus on the things that matter—innovating, building, and delivering great blockchain experiences.
We’re always improving our developer experience, so if you have any questions or feedback, reach out to us. In the meantime, we hope you enjoy the smoother, more robust contract verification process!

Insight now serves NFT assets through the Thirdweb Gateway, improving retrieval times by caching the content on a globally serving data on edge. Instead of referencing IPFS or Arweave links, insight automatically resolves them to edge-friendly endpoints, so metadata no longer displays IPFS URLs. This deployment works seamlessly with the existing NFT schema without requiring any additional steps. It enhances performance, reduces latency, and ensures consistent, high-speed access to decentralized assets.
Example:
before:
After
This means you can use the image directly in your frontend, the snippet bellow would render the NFT image from thirdweb gateway.



Effective Date: March 3, 2025, at 3:00 PM PST
Announcing some important changes to our mint fee process that further standardize our fee structure for all new contract deployments. We are introducing a 1% protocol fee applied to all contracts, and adjusting the convenience fee to 1.5% from previous 2.5%.
We believe this change strikes the right balance between a standardized protocol fee and the flexibility for custom fee settings, making fee management easier and more transparent for everyone.
Please note this change does not effect already deployed contracts.
What’s Changing?
- Fixed protocol fee:
All new deployments now include a non-overridable 1% protocol fee. This fee is implemented into the contract and will always apply if deployed through SDK, dashboard, or third-party integrations. For example, an asset listed at 0.1 ETH will distribute 0.099 ETH to the seller and 0.001 ETH to the platform. - Convenience Fee:
When deploying via dashboard, the fee includes a 1.5% convenience fee or 2.5% total (1% protocol fee plus an additional 1.5%). For example, an asset listed at 0.1 ETH will distribute 0.0975 ETH to the seller and 0.0025 ETH to the platform. - Custom Fee Configuration:
You can still set your own platform fee during deployment or later via our platform. The process works exactly as before, with the custom fee now being applied in addition to the fixed thirdweb fee.
Why the Change?
This adjustment helps support continued development and maintenance of prebuilt smart contracts, ensuring reliability, security, and innovation for the ecosystem.
For any questions or further details, please reach out to our support team.
FAQs
- Which prebuilt contracts will have included fees?
- The following contracts and corresponding modular versions will now include a seller fee:
- Drop Contracts:
DropERC20
,DropERC721
,DropERC1155
,OpenEdition
- Token Contracts:
TokenERC20
,TokenERC721
,TokenERC1155
- Specialized Contracts:
LoyaltyCard
,BurnToClaim
,MarketplaceV3
- Drop Contracts:
- The following contracts and corresponding modular versions will now include a seller fee:
- I deployed a contract prior to the effective date, will these fees apply to me?
- This fee is only applied to any contracts deployed after 3:00 pm PST on March 3, 2025

We Introduced a new include_spam
query parameter to the ERC20 token endpoint to filter out potential spam tokens.
The criteria for identifying spam include:
• Empty token name
• Empty token symbol
• Symbol length greater than 15 characters
• Zero decimals
By default, spam tokens are excluded from responses (include_spam=false
). You can try it in our playground by visiting here. See the example bellow:

Here is a Typescript example showing how to use it in your code:

We are now supporting NFT metadata for Insight NFT balance endpoints (ERC-721 and ERC-115).
By adding metadata=true
query parameter to the request, the response will include metadata about the NFT - name, description, image URL, background color, external URL, collection and contract info in addition to the balance.
Here's an example of the data that can be returned:
Try it out on our playground

Or call it directly from code
📖 Learn more about Insight - it’s open source and ready to power your applications!
The Insights API now supports querying contract metadata and ABIs. Powered by our contract indexing and verification backend, developers can now access verified contract metadata and ABIs for all supported chains directly within Insights. This eliminates the need to interact with block explorers and third party source code verifiers to get contract metadata and ABIs.
We've added the following endpoints:
Get contract ABI
Get contract ABI

Get contract metadata
Get contract metadata

Both endpoints are available in the playground to test.
Stay tuned for more updates and exciting features from Thirdweb!

We’re excited to unveil a powerful addition to the thirdweb platform: a brand-new API designed to automate chain onboarding in real time. This release is especially useful for Rollup-as-a-Service (RaaS) providers, who can now seamlessly integrate new chains into the thirdweb ecosystem the moment they’re spun up. No more back-and-forth or manual listing processes—this API provides a streamlined way to manage your chains on thirdweb.
What’s New?
- Automated Registration of Newly Spun-Up Chains
Our new API endpoints let you programmatically add or update chain configurations on the thirdweb platform. This is critical for RaaS providers who rapidly deploy new chains and need an immediate, frictionless connection to thirdweb. - Seamless Integration with Existing Workflows
Because the API is designed for simplicity, it easily slots into your existing DevOps workflow. You can add a single API call to your chain deployment scripts, automatically informing thirdweb about the new chain’s details—no manual steps required. - Real-Time Updates
Once your chain is registered, the thirdweb platform reflects the changes immediately, so developers can start using thirdweb tools (SDKs, CLIs, and dashboards) on your newly created chains right away. - Robust Documentation and Tooling
We’ve launched an accompanying API Reference that covers everything you need—from authenticating requests to building complex integration flows. You’ll find clear examples, success and error response codes, and best practice guidelines.
Key Endpoints at a Glance
Below are some of the most commonly used endpoints. A full list of endpoints and usage examples can be found in the API docs.
- POST
/chains
Register a new chain with thirdweb. Supply essential metadata (e.g., chain name, chain ID, explorer URLs, stack type and custom RPC urls) for immediate onboarding. - GET
/chains
Fetch details about chains added by your team. Useful for verifying that your chains has been successfully added and has all the relevant info present. - PUT
/rpcUrls/{chainId}
Add RPC urls for an existing chain, very requested by RaaS providers.
Why This Matters for RaaS Providers
- Speedy Deployment: Spin up a new rollup chain and instantly register it with thirdweb in a single automated step.
- Less Overhead: No more waiting on manual reviews or dealing with miscommunications. Your chain data stays in sync whenever you roll out a new version or fork.
- Scalability: Whether you have one chain or a thousand, the API is built to handle bulk provisioning and updates.
How to Get Started
- Review the Documentation
Check out the API docs for quickstart guides and detailed references. - Generate an API Key
Obtain an API key from your thirdweb dashboard. This key will authenticate your requests. - Integrate With Your Deployment Scripts
Add API calls to your RaaS deployment pipeline or CI/CD workflow to register new chains automatically. - Test & Monitor
Use the provided sandbox environment or your standard staging area to test new chain registrations before rolling out changes to production.
Looking Ahead
We’re committed to making thirdweb the most developer-friendly platform for emerging blockchain solutions. Here’s a sneak peek at what’s coming next:
- Account Abstraction
Automate provisioning and integration with your custom account abstraction flows for enhanced security and better user experiences. - Universal Bridge (previously thirdweb Pay)
Simplify asset transfers across different chains with an automatically provisioned, interoperable payment/bridge layer. - Insight
Gain real-time analytics and diagnostics across all your chains—insightful dashboards and metrics will be automatically enabled for new rollups.
Expect these features—along with additional endpoints, analytics hooks, and security enhancements—to be part of our continued effort to streamline multi-chain support.
Stay tuned for details and in the meantime, don't hesitate reaching out to get early access and needed permissions to be able to utilise this and give us feedback!
As always, thank you for building with thirdweb!

We’re introducing metadata retrieval in our ERC20 token API!
You can now include token information—such as name, symbol, and decimals—in a single call to our /tokens/erc20 endpoint. Just add the new metadata=true parameter to the query string. For example:
GET /v1/tokens/erc20/vitalik.eth&metadata=true
This returns the token’s metadata along with the usual balance data, simplifying your workflows and saving you from making extra calls. We’ve also added caching so metadata lookups are faster after the first request.
You can try it in our playground by visiting here. See the example bellow:

Here is a Typescript example showing how to use it in your code:

Insight API added support for querying block data.
Try it out on our playground

Or use it directly from code
📖 Learn more about Insight - it’s open source and ready to power your applications!

Insight API now supports an explorer-like endpoint to resolve blockchain data.
The resolve endpoint supports
- Transaction hashes - returns the transaction data
- Block hashes - returns the block data
- Addresses (also ENS names)
- In case of an EOA - returns last 20 transactions from that address
- In case of a contract - returns last 20 transactions to that address
- Event signatures - returns the latest 20 events with the given signature
- Function signatures - returns the latest 20 transactions with the given signature
Try it out on our playground

Or use it directly from code
This endpoint was initially called v1/search/:input
but was changed to v1/resolve/:input
to better reflect its purpose.
📖 Learn more about Insight - it’s open source and ready to power your applications!

At thirdweb, innovation is in our DNA. We’re excited to share a behind-the-scenes look at how our team is continuously pushing the boundaries to deliver an unparalleled user experience. Today, we're diving into some key upgrades that have transformed our RPC server.
🍞 Embracing the Bun Runtime
We’ve made a bold move by switching our RPC server to the Bun runtime. This isn’t just a technological upgrade—it’s a leap toward efficiency. With this change, we’ve managed to slash memory usage by 30%. What does that mean for you? More network requests are handled seamlessly, ensuring a smoother and more responsive experience without the need for extra hardware.
⚡ Turbocharged with Short-term Caching

Performance matters, and every millisecond counts. By introducing short-term caching into our architecture, we’ve dramatically reduced latency. Our metrics tell the story:
- P90 latency is down by 50%.
- P95 latency has improved by a whopping 300%.
These numbers translate into faster response times and a more robust service, even during peak usage periods.
🔍 Deep-Dive Monitoring with Enhanced APM
Understanding every nuance of our system is key to delivering excellence. We’ve integrated fine-grained our Performance Monitoring that drills down into every RPC call. This means we now track method-level usage and latency, giving us a crystal-clear view of performance across the board. With this insight, we’re empowered to act swiftly, optimizing our service before issues can arise.

What's Changed
Insight Indexer .NET Integration
Insight is an extremely useful and performant tool to query blockchain data and can decorate it quite nicely too.
Did you know that vitalik, on Ethereum, Polygon and Arbitrum alone owns 7811 ERC20s, 34,362 ERC721s and 2,818 ERC1155s?
Let's go through some examples!
Instantiation
Simple Args
Fetching all tokens owned by a given address
Fetching a specific type of token owned by a given address
Fetching Events
Note: most of these parameters are optional (and some are not showcased here)
Engine Blockchain API .NET Integration
Engine is one of thirdweb's most important products. We've created an EngineWallet
class that can be used as an IThirdwebWallet
and as such benefits from being compatible with the entire SDK!
Usage:
Integrated with last December's EIP-7702 release!
Additional Changes
- Arbitrum, Arbitrum Nova and Arbitrum Sepolia gas price related methods now get shortcut early and return maxFeePerGas = maxPriorityFeePerGas = current gas price.
Utils.GetChainMetadata
chain id related variables updated fromint
toBigInteger
.
Links

Collaborating with your team just got easier! You can now invite new members and manage existing ones directly from your dashboard.
This feature is available to all "Starter", "Growth" and "Pro" plan customers today.

Invite new members in your team
- Invite single or multiple team members via email
- Assign roles during the invitation process

Manage team members
- View all team members and their assigned roles.
- Remove team members when needed
- Search, filter, and sort team members for easy management

Monitor your Invites
- Track all pending and expired invites
- Delete an invite to revoke the invitation before it is accepted

Try it out
Go to thirdweb dashboard > Your Team > Settings > Members page

Insight API now supports Ethereum Name Service (ENS) names in address fields. You can use ENS names instead of raw Ethereum addresses when querying API endpoints.
Try it out on our playground

Or use it directly from code
📖 Learn more about Insight - it’s open source and ready to power your applications!

We’ve made significant enhancements to thirdweb Insight, allowing you to efficiently query ERC-20, ERC-721, and ERC-1155 token balances for any address.
Faster Queries on Large Chains
We identified latency issues on bigger chains where some requests took over 10 seconds.
Our improved indexing logic has reduced p99 query latency to under 1.5 seconds across all chains.
This is just the first step and we'll keep on improving the performance of Insight
Want to try it out? All endpoints are available on our playground: ERC-20 queries, ERC-721 queries and ERC-1155 queries.
Or integrate them into your app:
📖 Learn more about Insight - it’s open source and ready to power your applications!

Insight open source indexer has received it's first major version upgrade in beta to 1.0.2-beta
and brings with it more scalable reorg handling, better reliability and more performance.
New Features
- Token Balances API endpoint - The indexer API now has a new `/balances/:owner/:type` endpoint to retrieve token balances by type (ERC20, ERC721, ERC1155) for a specified address. Added features include aggregation support, customizable responses, and options for pagination and filtering.
- Materialized views for token balances - Created materialized views to keep track of token balances as logs are being inserted.
- Chain based table configuration for Clickhouse - when using Clickhouse as a data store, you can now configure table names and default columns.
- Field selection for storage connectors - Specific fields can be fetched via storage connectors to not query everything and improve performance.
Reliability and Performance
- Improved reorg handling with Clickhouse data store - Migrated database tables to use `VersionedCollapsingMergeTree` for better data accuracy and scale when indexing multiple chains.
NB! This is a breaking change! - Added serialization for API responses with specific column selection to better control the data returned. Also replaced array-based topics in logs with fixed columns for more reliable data handling.
- Enhanced committing integrity - added safeguards to track the last committed block, preventing data inconsistencies and duplicate insertion.
- Graceful shutdown - Implemented context cancellation for all orchestrator components to support graceful shutdown, improving application reliability during deployment disruptions.
GetTraces
Consistency - Updated trace fetching logic to conform to API standards and enabling consistent pagination and filtering across the codebase
This update introduces substantial improvements in API functionality and performance, database consistency, and overall reliability. These changes facilitate better integration, data retrieval, and system robustness, especially in cloud-deployed environments.
Learn more about Insight and how to use it.
Insight is open source.

We're creating the next evolution of thirdweb Pay with Universal Bridge.
Coinbase onramp provider
You can now onramp with over 40 fiat currencies to any token using just a credit card. This gives your users zero fees on select currencies, and no KYC required for low amounts.
1,000 new routes added
We've added new chains and new tokens available to bridge and swap. Over 1000 routes were added and more coming.
10x faster quotes
We're working on improved infrastructure to provide up to 10x faster quotes! These improvements will steadily roll out over the coming weeks.
UI Component improvements
We've been refining the UI of our prebuilt PayEmbed for all use cases: top up, commerce and transactions. Improvements include: showing fiat values next to token value everywhere, refined token selection flow, better error messaging and more.

Core Updates
- Updated Thirdweb Rust static libraries to v1
- In-App Wallets now have near 1:1 functionality with Ecosystem Wallets and share the same infrastructure.
- Existing wallets will be automatically migrated to the new enclave infrastructure upon first login if needed.
- Smart Wallet Factory improvements
- Factory address is now stored on creation, eliminating the need for repeated declarations in nodes.
- Write Contract node enhancements
- Now implemented as a
K2Node
, allowing for raw data input via JSON.
- Now implemented as a
Fixes & Optimizations
- File length constraint fixes
- Renamed all async tasks to comply with Epic's new 170-character file length rule, which previously caused issues due to plugin name hashing.
- Unreal Engine Version Specific Compilation Issues
- Added various conditional imports to additional headers resolving version-specific compilation issues.
- Bug fixes
- Fixed an issue where abstract class instantiation was attempted from Blueprints; now properly using the
HasDedicatedNode
meta tag. - Resolved an Android packaging error with the Thirdweb plugin in UE 5.4.
- Fixed a crash on startup when packaging for Mac.
- Fixed Write Contract ExpandNode Error.
- Removed Chromium Embedded Framework (CEF) and related project settings.
- Fixed multiple compilation, build, and packaging issues.
- Fixed an issue where abstract class instantiation was attempted from Blueprints; now properly using the
Quality of Life Improvements
- Improved Examples
- Updated samples to use the latest fixed nodes.
- DX improvements
- Various enhancements to Thirdweb editor utilities.
- Other updates
- Updated copyright to 2025.
Links
Unreal Engine v2.0.0 | Fab Marketplace (May not be up to date at the time of reading this, if that is the case, build from our github source!)

You can now use thirdweb dashboard to deploy contracts deterministically (create2) on multiple EVM chains.
To use this feature, deploy any thirdweb prebuilt or a custom contract using thirdweb dashboard. Then navigate to the Cross chain
tab on contract page as shown below:

Use the dropdown to select the chain you wish to deploy on. Then click on Deploy
button.
Once the contract gets deployed (or if it's already deployed at that address), the status will change to Deployed
and you can click the link as shown above to navigate to that chain's contract page.
This feature is available for all thirdweb prebuilt contracts as well as custom contracts that are deployed / published using thirdweb tools. All direct deploy contracts (i.e. not proxy) must be deployed deterministically to enable this feature.
Note: this feature is available only for EVM chains
Go ahead and deploy a contract here.

All Deployed Contracts Are Now Assigned to Projects
Previously, the thirdweb dashboard only allowed you to import contracts, without the ability to associate them with specific projects. Contracts were displayed as a single list across teams, projects, and account pages.
Now, you can organize your contracts within projects for better management.
As part of this update, all your deployed contracts have been automatically added to all your projects. You can now review each project and keep only the relevant contracts by removing others from the project

Easily Add Contracts to Projects
Deploy & Add to Project
When deploying a new contract, you can now add it to a project immediately.

Add Any Contract to a Project
Existing contracts can be added to projects with the new "Add to Project" button on the contract details page. Here's Doodles NFT contract for example:


Effortless Contract Management
Unlike the previous "Import to Dashboard" and "Remove from Dashboard" actions, adding or removing contracts from a project no longer requires signing a message.
Published Contracts Relocated
The Published Contracts page has been removed from the Teams and Projects pages and is now accessible via your Wallet profile page. A Link to the wallet profile page is also added in the Account Management Dropdown as shown below

Here's the thirdweb.eth profile page for example


What's Changed
- Smart Wallet transaction receipt polling can now time out based on your client "Other" timeout options, similar to normal transactions.
- Our dashboard now supports rotating your secret keys. Rotated secret keys are now supported in this version.
- You can now call
InAppWallet
orEcosystemWallet
'sCreate
function and instantly login with atwAuthTokenOverride
which would be an auth token/cookie that you would have retrieved from any other thirdweb app, such as a web app, electron launcher, or any app built using our various SDKs.
Previously, it was only possible to go from .NET to other React apps using GenerateExternalLoginLink, this unlocks the other way.
Links


Effective Date: February 11, 2025, at 2:00 PM PST
Since launching in 2021, over 2 million smart contracts have been deployed with our toolkit — powering billions of transactions every year. We’re making some changes to our fee structure to better support the development of our smart contract development toolkit.
Starting on the effective date, a 2.5% platform fee (applied to both native and ERC20 tokens) will be introduced for all prebuilt contracts deployed through the thirdweb dashboard after 2 pm PST on February 11, 2025.
Please note this change does not effect already deployed contracts.
Which contracts have a fee?
This change applies to any contracts that have a primary sale recipient, including but not limited to:
- Drop Contracts:
DropERC20
,DropERC721
,DropERC1155
,OpenEdition
- Token Contracts:
TokenERC20
,TokenERC721
,TokenERC1155
- Specialized Contracts: ,
LoyaltyCard
,BurnToClaim
,MarketplaceV3
How the Fee Works
- The 2.5% fee will be automatically deducted from primary sales executed through these contracts. For example, an asset listed at 0.1 ETH will distribute 0.0975 ETH to the seller and 0.0025 ETH to the platform.
- The fee applies only to prebuilt contracts deployed via the thirdweb dashboard. Custom contracts or externally deployed contracts remain unaffected.
- The fee is charged from the primary sale, including a claim or mint action when there is a price on the NFT (non-zero). The fee is paid in the same currency as the claiming or minting price.
Why This Change?
This adjustment helps support continued development and maintenance of prebuilt smart contracts, ensuring reliability, security, and innovation for the ecosystem.
For any questions or further details, please reach out to our support team.
FAQs
- Which prebuilt contracts will have included fees?
- The following contracts and corresponding modular versions will now include a seller fee:
- Drop Contracts:
DropERC20
,DropERC721
,DropERC1155
,OpenEdition
- Token Contracts:
TokenERC20
,TokenERC721
,TokenERC1155
- Specialized Contracts:
LoyaltyCard
,BurnToClaim
,MarketplaceV3
- Drop Contracts:
- The following contracts and corresponding modular versions will now include a seller fee:
- I deployed a contract prior to the effective date, will these fees apply to me?
This fee is only applied to any contracts deployed after 2 pm PST on 2/10/2025. - Can I opt out of the changes?
- This change only applies to contracts deployed via the dashboard and not any contracts deployed programatically.

This release introduces a powerful credential management system and adds support for Circle's Web3 Services wallets. Circle, known for USDC and trusted by major financial institutions, provides institutional-grade wallets with bank-level security and SOC certifications - perfect for teams that need robust security assurance and regulatory compliance.
New Credential Management System
Managing cloud credentials across multiple wallets has always been a pain point. We've fixed that with a new credential system that brings enterprise-grade security features to your wallet infrastructure.
What's awesome about it:
- Easy Rotation: Update credentials for multiple wallets at once by rotating their shared credential - perfect for regular security maintenance
- Security at Scale: All wallets using the same credential automatically inherit security updates and policy changes
- Audit Superpowers: Easily track which wallets are using which credentials for security reviews and compliance
- Emergency Ready: Quick response to security incidents by updating credentials across all affected wallets simultaneously
Circle Developer-Controlled Wallets
We've added support for Circle's w3s developer-controlled wallets, bringing enterprise-grade signing capabilities to Engine. These wallets integrate seamlessly with our new credential management system and existing Engine infrastructure for transaction management.
Try It Out
Upgrade to engine v2.1.32, then try creating a smart backend wallet backed by Circle:
Create a Circle Wallet Credential
Use Circle Wallet Credential to create a Circle powered Smart Backend Wallet
Learn more about the entitySecret
and how to create one from the Circle docs.
Take a look at our docs to learn more about configuring Engine to support Circle wallet, and check out our API Reference for detailed documentation and more examples.
What's Next?
We're working on expanding the credential system to support more wallet types and rolling out default credentials. Stay tuned for updates!
We're working on expanding support for more institutional wallet providers. Using Fireblocks, Copper, or another institutional wallet provider? We want to hear from you! Let us know which integrations would help your team ship faster.
Got questions? Join our Discord or check out the documentation.
thirdweb Engine is an open-source server for your app to read, write, and deploy contracts at production scale. Self-host for free or get a cloud-hosted Engine for $99/month.


This update brings natural language support for token swapping and bridging, expanded access to offchain knowledge, and improved session context management.
New Features
- Added support for swapping and bridging tokens in natural language
- Example → "Swap 1 USDC to 1 USDT on the Ethereum Mainnet" or "Bridge 0.5 ETH from Ethereum Mainnet to Polygon"
- Added more support for offchain knowledge including research headlines and articles about tokens or protocols
- Example → “Tell me more about $UNI project”
- Support for updating
context
using the/session/{session_id}
endpoint- Example,
Nebula is currently in Alpha for a select number of developers. For access to the product, please sign up on the Nebula waitlist.
For any feedback or support inquiries, please visit our support site.
The Insight API now supports automatic decoding of events and transactions. Developers can now receive decoded transaction data by simply adding the decode=true
parameter to event and transaction endpoint calls. Insight API will load ABIs directly from it's vast database of contract metadata and return decoded events directly in the response. This significantly simplifies dealing with onchain data for developers by removing the need to 1) manage ABIs for external contracts and 2) write logic for decoding event data from any chain.
Example:
Response:
Learn more about Insight from our docs or by reviewing the source code on GitHub.


This update brings significant improvements to Nebula, including an upgraded model (t2) for a more engaging and helpful experience—now with added personality and even emojis! 🚀
Improvements
- More output personality to make Nebula more friendlier and helpful. It even outputs emojis :D
- Improved speed performance and handling about chains (block information) or wallets on common prompts
- Increased memory retention per session by and context holding within session
- Improved accuracy at responding to prompts related to historical blockchain data
- Improve speed performance when fetching wallet balance
Bug Fixes
- Fixed wallet balances failed to fetch error due to missing sale prices
Nebula is currently in Alpha for a select number of developers. For access to the product, please sign up on the Nebula waitlist.
For any feedback or support inquiries, please visit our support site.

As our customer base continues to grow, we’re enhancing our RPC Edge support process to ensure faster and more efficient assistance.
What’s Changing?
We’re introducing Support IDs to streamline issue resolution. When reporting an RPC Edge issue, you’ll receive a Support ID, which you can share with our team to expedite troubleshooting.
How This Helps You:
✅ Faster response times – No need to repeat details, just share your Support ID.
✅ More efficient issue tracking – Our support team can quickly locate and diagnose your request.
✅ Improved support experience – Ensures every user gets the help they need, faster.
Example:
When reporting an issue, provide your Support ID like this:
🆔 Support ID: d4dea8aa-ad4a-4fe5-968b-24f1927f6f0b
This change ensures that every RPC-related inquiry is handled with greater speed and accuracy. 🚀

What's Changed
TL;DR
Added a new /query/blocks
endpoint to retrieve block data with filtering, sorting, and aggregation capabilities.
What changed?
- Created a new
/query/blocks
endpoint in the API - Implemented block data retrieval with support for:
- Filtering by chain ID and other block parameters
- Sorting and pagination
- Aggregation functions
- Group by operations
- Updated the storage interface to return
QueryResult
for block operations - Added block scanning functionality to handle database rows
How to test?
- Start the API server
- Make GET requests to
/query/blocks
with optional query parameters:chainId
: Specify the blockchain networkfilter
: Apply filters to block datasort_by
: Sort results by specific fieldssort_order
: Choose ascending or descending orderpage
andlimit
: Control paginationaggregate
: Apply aggregation functionsgroup_by
: Group results by specific fields
Why make this change?
To provide a standardized way to query and analyze block data from the blockchain, enabling users to retrieve block information with flexible filtering and aggregation options. This enhancement aligns with the existing transaction and event query capabilities of the API.
Why is this useful?
As an example, this feature allows users to easily fetch the earliest block number that meets a specific timestamp criterion. For instance, when constructing block ranges based on timestamps, this can help in determining the precise blocks that fall within certain time windows. This functionality is crucial for tasks such as historical data analysis, event tracking, or aligning blockchain queries with specific real-world dates.
Learn more about Insight and how to use it.
Insight is open source.

Open source version of Insight 0.2.1-beta has been released and focuses on the robustness and reliability of indexing blockchain data.
Reorg handling improvements
- Implemented dynamic block range calculations for the reorg handler, allowing both forward and backward scanning based on sync state.
- Improved logic to find specific reorged block numbers rather than ranges, allowing to scan bigger ranges at a time.
- Enhanced error messages for better debugging.
- Updated reorg detection to avoid including non-reorged edge blocks
- Implemented fetching blocks in parallel chunks for performance gains
- Improved test coverage
API Changes
- Added support for more time functions in aggregations. Added `toDateTime`, `toStartOfMonth`, `toStartOfHour`, and `toStartOfMinute`
- Whitelisted
concat
function to be used in aggregations and parsing the contract address from raw data
Clickhouse delete optimizations
- Improved delete performance in ClickHouse by implementing partition-aware deletes and asynchronous processing. This enhancement minimizes wait times and optimizes resource usage during deletion operations
Learn more about Insight and how to use it.
Insight is open source.

At thirdweb, we empower developers to build decentralized apps effortlessly—and reliable storage is core to that mission. Today, we’re announcing two key upgrades to our IPFS infrastructure: improved resilience and enhanced monitoring, designed to scale your dApps with confidence.
🛡️ Resilient Uploads,
We’ve introduced automated failover and retry mechanisms for IPFS uploads. If a primary node fails, thirdweb instantly switches to a backup, ensuring seamless data storage with minimal downtime. This redundancy safeguards your app’s content against network disruptions, keeping it consistently accessible for users.
📊 Proactive Insights
Our upgraded monitoring tools now track real-time upload success rates, latency, and node health metrics like bandwidth, storage capacity, and peer connections. Historical data analysis lets us preemptively optimize nodes, addressing issues before they impact your app.
Why This Matters
User trust hinges on reliability. With thirdweb’s fortified storage layer, you can build knowing your app withstands real-world challenges—letting you focus on innovation, not infrastructure.


This release focuses on granular configurations for responses to control randomness, limitations, and formats for outputs. Additionally, two new OpenAI compatible endpoints including /chat/completions
and /models
, and simplified context filter endpoint for an improved developer experience.
New Features
- Enable advanced LLM configurations to control output randomness and formatting, including temperature, presence penalty, max tokens, new response formats (JSON object, JSON schema), and nucleus sampling (top-p).
- New endpoint for
/chat/completions
compatible with OpenAI client to process chat history and generate context-aware responses.
- New OpenAI compatible endpoint to list out models used by Nebula
- Simplified
context_filter
andexecute_config
intocontext
for/chat
,/execute
, and/chat/completions
endpoints.
Before:
New:
Nebula is currently in Alpha for a select number of developers. For access to the product, please sign up on the Nebula waitlist.
For any feedback or support inquiries, please visit our support site.

With the thirdweb SDK, all smart wallets maintain the same address across any EVM chain. Account factories and wallet deployments are managed for you from within the thirdweb SDK unless overridden with your own factory. If you need a different wallet address for any reason, you can provide an optional account salt to the wallet.
Create a smart wallet on your default chain:
Send your transaction on any chain:
If you need to create a wallet using the same admin account but a different address, use an account salt:
Check out the video for more:

.NET 2.17.0 Release
What's Changed
Nebula AI .NET Integration (Beta)
The last piece of the puzzle required to create .NET apps and games leveraging a blockchain-powered AI assistant or NPC that also has the power to fully execute transactions. Further enhanced when combined with Server Wallets and Account Abstraction.
Read, Write, Reason.
The best way to understand is to look at examples.
We'll prepare some context for the AI - here, we'll generate a basic PrivateKeyWallet
and upgrade it to a SmartWallet
on Sepolia.
A one liner creates a Nebula session.
You can Chat with Nebula. The Chat method accepts any IThirdwebWallet
as an optional parameter, context will automatically be updated.
You may also pass it smart contract context.
You can have a full on conversation with it with our Chat override accepting multiple messages.
Chatting is cool, but what if I just want it to do things and stop talking so much?
You can Execute transactions directly with a simple prompt.
Similarly, Execute can take in multiple messages.
Enhanced Analytics
We've added transaction and connection analytics that will show up on your thirdweb dashboard and give you a better sense of your users' activities - make sure you grab this version to get the benefits!
If you've read this far, access Nebula and start building cool things. You're early - a full stack blockchain integration powered by AI is not something you see in .NET land too often, make use of thirdweb to build next-gen applications, and reach out to us!
Unity 5.17.0 Release
What's Changed
- Additions from Thirdweb's .NET SDK Release 2.17.0
- Includes Thirdweb Nebula AI Integration.
- Combine with Backend Wallets & Account Abstraction to create truly unique experiences.
- Moved analytics to the .NET SDK (DLL), removed from
ThirdwebManagerBase
. MetaMaskWallet.Disconnect
now callswallet_revokePermissions
allowing you to fully disconnect the extension - thanks @tulfix !
You now have all the tools to be the first to build the best interactive NPCs to ever accompany your players - contact us if you run into any issues!
Links

We just added a new section on your project overviews showing how your users are transacting from your apps!

These stats will show all transactions initiated from the client side by day/week/month, as well as the most interacted chains and contracts with direct links.
Check out your own stats by navigating to your project overview, and make sure to use the latest version of the thirdweb SDKs.
We're continuously improving our analytics to better help you monitor the growth of your apps, let us know what you'd like to see next!

At Thirdweb, we’ve been hard at work implementing significant improvements to our infrastructure, and we’re thrilled to share the results of these efforts. This update represents a major leap forward in scalability, performance, and resilience, ensuring we’re better equipped to serve our users now and in the future. Here's what we’ve achieved:
⚡ Unlocking New Levels of Performance
One of the key drivers of this overhaul was the need to reduce latency and improve response times. Our engineering team has:
- Reduced P99 Latency: We’ve slashed P99 latency from upwards of 20 seconds to just 2 seconds. This improvement means even the slowest requests now complete faster than ever.
- Optimized Average Response Time: The average response time is now just 250ms, providing a snappier, smoother experience for our users.
- Expanded Regional Coverage in Europe and Asia Pacific: We have introduced new regions in Europe and Asia Pacific, allowing us to provide more localized services to meet the growing demands of our global customer base. Additionally, these new regions enhance our disaster recovery capabilities, ensuring greater resiliency and reliability.
These enhancements ensure that our platform is not only faster but also more consistent under varying workloads.
📈 Enhanced Autoscaling for Seamless Scaling
To handle ever-increasing traffic demands, we’ve rolled out improved autoscaling capabilities. These dynamic systems allow us to:
- Respond to peak load surges without sacrificing performance.
- Maintain cost efficiency by scaling resources up or down as needed.
This ensures that no matter how much demand our platform faces, we’re ready to deliver resilient service.
🛡️ Stress-Tested for Resilience
Reliability is critical, especially as we scale. To validate our infrastructure’s ability to handle increasing demand, we conducted resilience testing at over 6,000 Requests Per Second (RPS). The system performed admirably, solidifying confidence in its ability to handle extreme loads.
Our load testing focused on the RPC router, which efficiently routed requests to over 2,000 nodes globally over a 6-hours period. The screenshots below provides a sample measurement of the aggregated P90 latency across all RPC calls in all regions.



🌍 Regional RPC Rollout
We’re expanding our global footprint with the rollout of Regional RPC services in Asia Pacific (SEA), Europe (EU), and Americas (US). This regionalization improves latency by up to 60% for users across the globe and ensures a more localized and reliable service experience.
🔐 Updated Authentication with Team Integration
Security and collaboration are critical, and our updated authentication system now integrates seamlessly with teams. This allows:
- Enhanced access control for better security.
- Simplified management of team-based workflows.
This update ensures that working as a team on our platform is both secure and effortless.
🔮 Looking Ahead
These improvements mark a significant milestone in our ongoing commitment to delivering a fast, reliable, and scalable platform for our users. But we’re not stopping here. Our team is already planning the next wave of enhancements to stay ahead of the curve and continue providing the best experience possible.
Thank you for being a part of our journey. We’re excited about these changes and can’t wait for you to experience them. Let us know your thoughts and stay tuned for more updates!

thirdweb v5.85.0
has been released with new features a breaking change for the beta nebula API as well as notable bug fixes.
Breaking Changes
Renamed Properties in Nebula Functions
The following property names have been updated in Nebula.chat()
and Nebula.execute()
to align with the HTTP API:
prompt
is nowmessage
context
is nowcontextFilter
Before:
After:
New Features
Multi-Message Support in Nebula Functions
Both Nebula.chat()
and Nebula.execute()
now support multiple input messages through the new messages
property, enabling more complex conversation flows.
Chat Example:
Execute Example:
Each message in the array requires a role
("user" or "assistant") and content
string.
Patch Changes
Bug Fixes
- Fixed NFT components incorrectly displaying metadata when multiple contracts with the same token ID are rendered due to caching issues
- Fixed MarketplaceV3 deployment for Xsolla testnet
Chain Updates
- Added
mode
as a predefined chain - Added overrides for Lumia Testnet to use pre-EIP1559 gas values

New Transactions Breakdown Chart
This chart shows a breakdown of transactions sent by your Engine's backend wallets by their status. This gives you an insight into the transaction volume and success/error rate trend at a glance

Transaction History Table Updates
Pagination and Status filters added in Transaction history table. Pagination UI also has an input field that allows you quickly jump to a page - allowing you to quickly comb through a large list of transactions


We've added new chains to the platform this week!
Every chain comes out of the box with SDK support RPC, Engine and Account Abstraction capabilities. All you need is the chain id to get going.
For testnets, you'll also find a faucet in each chain page.
Happy building! 🛠️

.NET v2.16.0 Release
What's Changed
AuthProvider.SiweExternal - SIWE, OAuth style
Depending on the framework, or on the external wallet platform support, you may not have direct access to every single wallet out there.
This new AuthProvider allows you to login to otherwise native-unavailable wallets such as Abstract Wallet & Coinbase Smart Wallet through a flow similar to OAuth, using SIWE.
It'll redirect you to static.thirdweb.com and use our React SDK and other wallet SDKs as needed, unlocking the ability to login (or link) with any wallet thirdweb supports on web, from runtime platforms that would otherwise be unsupported by said wallet, and create an In-App or Ecosystem Wallet out of it.
Windows Console Example:
You can now override the default session id used with Guest authentication
This is useful when you want your guest mode to be tied to a unique device identifier, and depending on your framework there may be various APIs to fetch such identifiers that you may want to use.
Example:
Unity 5.16.0 Release
What's Changed
- Additions from Thirdweb's .NET SDK Release 2.16.0
- Integrated
AuthProvider.SiweExternal
in ThirdwebManager.- Work around your favorite external wallet not having Unity support.
- OAuth style linking variant of
AuthProvider.Siwe
, but using wallets and SIWE in a static React environment.
AuthProvider.Guest
now uses a unique device identifier, making it a little more persistent than the previous implementation.- Guest mode is meant as an ephemereal login method, you should allow users to link additional auths later in the flow.
- This update makes Guest mode a little more persistent in cases where users delete something by mistake.
- Fixed edge case where
Application.identifier
being an empty string with some build configs would cause an empty bundle id to be used as the fallback instead of com.company.product.
Links


New Features
- Nebula TypeScript SDK now available in Beta, integrate /chat and /execute calls easily or be able to plug into any framework
- New example template on how to create specialized AI agents that can interact with blockchain data while maintaining a distinct personality and purpose
Improvements
- Read and write contracts with better function argument extraction
- Improved understanding and parsing for array function arguments related to reading or executing contract functions
Bug Fixes
- ENS resolver not parsing correctly in select cases
- Query wallet balance improvements handling wallet addresses with multiple tokens or NFTs
- Add improved read support for chains with block
extraData
including Polygon

The thirdweb TypeScipt SDK v5.84.0 release adds support for Nebula, our new AI model designed interact with real time blockchain data and execute transactions with natural language.
Installation
Simply install the thirdweb package on your frontend or backend to get started.
Natural Language Blockchain Queries
Nebula enables developers to query real-time blockchain data using simple natural language prompts. From checking contract symbols to analyzing on-chain metrics, Nebula provides human-readable responses to your blockchain queries.
AI-Powered Transaction Execution
Nebula goes beyond just querying data - it can now execute blockchain transactions based on natural language instructions. Simply connect your wallet and describe the transaction you want to perform.
Key Features
- Natural language processing for blockchain queries
- Real-time data access across 2000+ chains
- Transaction execution through simple prompts
- Works with 300+ wallet providers, in-app wallets, smart wallets and engine
- Context-aware responses and actions with multi step sessions
This addition to the SDK marks a significant step forward in making blockchain technology more accessible and user-friendly. Nebula's natural language capabilities greatly reduce the complexity of doing complex actions on the blockchain.
For detailed documentation and examples, please visit our documentation portal or join our Discord community for support and discussions.
Happy Building! 🛠️

Backend Engine Account Support
The thirdweb TypeScript sdk v5.84.0
introduces the new engineAccount()
function, enabling seamless backend integration with your thirdweb Engine instance. This addition allows developers to leverage the full power of the thirdweb SDK and contract extensions functions in backend environments while benefiting from Engine's performance, reliability, and monitoring capabilities.
Key Features
- Create Engine-powered accounts for backend transaction handling with nonce and fund management
- Full access to thirdweb SDK functions and extensions from the backend
- Built-in transaction monitoring and reliability features
Usage Example
This update helps backend development workflows by opening up the large catalog of extensions functions available in the SDK. The engineAccount()
function serves as a bridge between your backend services and the blockchain, handling transaction preparation, submission, and confirmation in a reliable manner.
For more information about this release, please visit our documentation or join our Discord community for support and discussions.
TypeScript Auto Connect
The SDK now exposes the autoConnect
function for use outside of React environments. This allows developers to implement wallet auto-connection functionality in any JavaScript/TypeScript environment.
Usage Example
For more information about this release, please visit our documentation or join our Discord community for support and discussions.
Happy building! 🛠️

We're excited to introduce powerful new batching capabilities in Engine v2.1.25, enabling you to execute multiple operations atomically and efficiently read from multiple contracts in a single call.
New Features
1. Atomic Transaction Batching
New Endpoint: /backend-wallet/{chainId}/send-transaction-batch-atomic
Send multiple transactions that will be executed together in a single atomic operation. Perfect for operations that need to happen in a specific order, like token approvals followed by transfers. Check out the API Reference for more details.
Key Benefits:
- Guaranteed order of execution
- All transactions succeed or fail together
- Single queue ID for tracking the entire batch
- Compatible with all smart account setups:
- Smart backend wallets (no additional headers needed)
- Regular backend wallets using
x-smart-account-address
header
Usage Example:
Example cURL for Atomic Batching
Difference from Previous Write Endpoint:
- Previous: Each transaction got its own queue ID, executed independently
- New: Single queue ID for entire batch, guaranteed atomic execution
2. Contract Read Batching
New Endpoint: /contract/{chainId}/read-batch
Execute multiple read operations across different contracts in a single call, with guaranteed consistency of data from the same block. Check out the API Reference for more details.
Key Benefits:
- All reads executed in the same block
- Reduced RPC calls using multicall3
- Perfect for getting related data across contracts
- Consistent state snapshot across all reads
Usage Example:
Example cURL for Batch Reads
Transaction Status Updates
The transaction status object now includes a batchOperations
field that provides details about all operations in an atomic batch. This field will be null for non-batch transactions:
batchOperations field in Transaction Status Object
thirdweb Engine is an open-source server for your app to read, write, and deploy contracts at production scale. Self-host for free or get a cloud-hosted Engine for $99/month.

Contract Analytics on thirdweb dashboard is now powered by thirdweb Insight
You can select a date range and see various analytics for the contract such as
- Unique wallets that have sent transactions
- Total Transactions & Events
- Breakdown of unique Functions calls & emitted Events


View this contract analytics on dashboard
What is insight?
Insight is a powerful tool that lets you retrieve blockchain data from any EVM chain, enrich it with metadata, and transform it using custom logic.
Whether you're building a gaming inventory system, tracking DeFi metrics, or analyzing NFT collections, Insight makes it easy to get the data you need with simple API calls. Learn more about thirdweb insight to use in your projects!

We’re excited to announce a major update to Insight API! The latest changes enhance the API’s functionality by introducing multichain support, enabling seamless data fetching across multiple blockchain networks.
What's New?
Multichain Queries Across All Endpoints
- Parallel Data Fetching: Fetch data from multiple chains simultaneously, improving efficiency.
- Consolidated Responses: Responses now include
chain_ids
in the payload to identify the source chain for each piece of data. - Enhanced Response Schema: Added metadata fields:
chain_ids
: List of queried chain IDs.total_items
: Total count across all chains.limit_per_chain
: Indicates the per-chain limit derived from the request's original limit.
Chain IDs Validation
Only requests with supported chain IDs—validated against Thirdweb Insight’s chain list—are now processed. This ensures consistent and accurate responses.
Updated Endpoints
The following endpoints now support multichain queries:
/tokens/erc20
: Consolidates token balances across chains/events
: Returns events from specified chains, preserving chain identification./transactions
: Provides transactions with proper error handling for invalid chain IDs./query
: Delivers raw query results with metadata for chain information.
Backward Compatibility
Existing single-chain requests remain fully supported, ensuring no disruptions for current users.
Example Requests
Single-Chain Request
Multichain Request
Response Example
Looking Ahead
This update lays the groundwork for future improvements on multichain queries via Insight API. As we continue to expand, our goal is to make working with multichain data as seamless and efficient as possible.
Start leveraging these improvements today to explore multichain insights more effectively!

We're excited to announce that thirdweb Insight has expanded its blockchain data querying capabilities with support for 43 chains, including these 15 new chains:
- Polygon mainnet
- Polygon Amoy testnet
- Optimism mainnet
- OP Sepolia testnet
- Celo mainnet
- Ancient8 mainnet
- Ancient8 testnet
- Plume mainnet
- Plume testnet
- Avalanche Fuji testnet
- Superposition testnet
- Etherlink testnet
- Mantle Sepolia testnet
- XAI testnet
- Lumia testnet
What This Means For Developers
With these additions, you can now use all of Insight's powerful features across these new chains:
- Query on-chain events with the Events Blueprint
- Track transactions with the Transactions Blueprint
- Monitor token balances (ERC-20, ERC-721, ERC-1155) with the Tokens Blueprint
For example, to query latest events on Optimism
Replace <client-id> with your thirdweb client ID
View All Supported Chains
For a complete list of supported chains and their respective chain IDs, check the thirdweb chainlist.

We’re excited to share the latest updates to Nebula, bringing powerful new features, enhancements, and bug fixes to improve your development experience. This release focuses on expanding Nebula’s capabilities, making it even easier to deploy contracts, retrieve information, and interact seamlessly with the platform.
Features
- Contract deployment support: Deploy thirdweb ERC-20 (Token), ERC-721 (NFT Collection), ERC-1155 (Edition), and Split contracts using Nebula via the chat interface or the API.
- Prompt Nebula to prepare and execute contract deployments in natural language — example, “Deploy an ERC-20 contract named “Hello World” with description “Hello world token deployed with an AI” and symbol “HELLO”
- More published contracts will be supported in upcoming releases. If you would like for your published contract to be enabled on Nebula, please contact us.
- Multi-message API: Enable multi-message on the
/chat
and/execute
endpoints to allow multi-shot prompts that can be helpful to maintain and clarify context, and refine responses. The/chat
and/execute
endpoints accept:message: string
or

- Comprehensive support for developers: Expanded resources and guidance to help developers effectively build web3 apps and games using thirdweb's extensive tooling and documentation.
- "How do i transfer erc20 tokens in .NET?”
- "How do i setup a session key in unity?”
- Build using Nebula and Eliza, a simple and lightweight framework for creating autonomous AI agents.
- Eliza plugin is current available for testing out on dev and will be available on production soon. Start with https://github.com/elizaOS/eliza/tree/develop/packages/plugin-thirdweb
Nebula is currently in Alpha for a select number of developers. For access to the product, please sign up on the Nebula waitlist.
For any feedback or support inquiries, please visit our support site.

What's Changed
- Additions from Thirdweb's .NET SDK Release 2.14.0
- Additions from Thirdweb's .NET SDK Release 2.15.0
- Added
AuthProvider.Backend
's relatedwalletSecret
to In-App and Ecosystem Wallets' options. You can now create server side wallets! - Split
ThirdwebManager
intoThirdwebManagerBase
,ThirdwebManager
(frontend),ThirdwebManagerServer
(backend)- Adds
ThirdwebManagerServer
prefab, usesSecretKey
instead ofClientId
andBundleId.
- Adds a lot of flexibility and extendability for various use cases.
- Adds
It's time to make blockchain-powered AI allies and opponents that leverage backend wallets and perhaps even Nebula.
Links

Engine v2.1.24 introduces sponsored transaction support for regular backend wallets, enabled on zkSync chains leveraging native account abstraction.
What's New?
Sponsored Transaction Mode
Added x-transaction-mode: sponsored
header that enables sponsored transactions for regular backend wallets. This brings key benefits:
- No need to hold or manage gas tokens
- All gas costs are handled by thirdweb's paymaster
- Receive consolidated gas usage bills from thirdweb
- Compatible with local, AWS KMS, and GCP KMS wallets
Technical Details
To send sponsored transactions:
HTTP Headers
The header:
- Works with regular backend wallets on supported chains
- Is ignored when used with Smart Backend Wallets (their transactions are already sponsored)
- Returns an error if used on currently unsupported chains
Getting Started
- Update to Engine v2.1.24
- Add the
x-transaction-mode: sponsored
header - Send transactions normally through your regular backend wallet
Smart Backend Wallets handle sponsored transactions by deploying a separate smart account for your wallet. On zkSync, wallets can act as their own smart accounts - meaning your regular wallet address can send sponsored transactions directly without needing a separate smart account address.
Contact support@thirdweb.com for any questions about implementing native AA support in your application.
thirdweb Engine is an open-source server for your app to read, write, and deploy contracts at production scale. Self-host for free or get a cloud-hosted Engine for $99/month.

.NET Updates
- Added
DropER721_Burn
,DropERC1155_BurnBatch
,TokenERC721_Burn
,TokenERC1155_Burn
,TokenERC1155_BurnBatch
contract extensions. - Overriding default RPCs is now allowed through a new
ThirdwebClient
creation parameterrpcOverrides
.
- Removed some leftover unnecessary logging.
Integration in Unity & WalletConnect Updates
- Additions from Thirdweb's .NET SDK Release 2.13.0
- Exposed the ability to override RPC per chain ID in the
ThirdwebManager
. - Exposed the ability to force specific wallet ids into your WalletConnect modal in the
ThirdwebManager
. - Added hover tooltips for all
ThirdwebManager
options.
Autoconnect Feature
Flag under ThirdwebManager > Preferences.
If enabled, Thirdweb will automatically connect to the last connected wallet on initialization (this behavior does not apply to the WalletConnectWallet provider option).
If a wallet was connected as a non smart wallet, then later upgraded, the smart wallet is saved as the last wallet, and the next session will autoconnect to the smart wallet.
Any failure during this entire flow should not throw.
Links

We are thrilled to announce support for backend wallets! This enhancement empowers developers to programmatically access wallets through their backend systems without needing to manage private keys directly. It simplifies wallet management while maintaining security and flexibility for various use cases.
Why Backend Wallets Matter
Traditionally, managing wallets in decentralized applications often required dealing with private keys or relying on client-side solutions. However, there are scenarios where programmatic access to wallets on the backend is essential, such as:
- Server-side automation: Automating blockchain interactions for services like token minting, payments, or data signing.
- Enhanced security: Keeping private keys off the client side while enabling wallet operations.
- Custom integrations: Integrating wallets seamlessly with backend APIs for complex workflows.
With backend wallet support, developers can now securely and conveniently access wallets from their backend infrastructure.
How It Works
The new feature allows you to create a wallet instance on the backend using the backend
, here's how it's done with the typescript SDK:
Get Started Today
Ready to explore backend wallet support? Try it out on all version of the thirdweb
SDK from 5.83.0
onwards.

Features 🚀
EIP-7702 Authorization Lists (Beta)
We've added beta support for EIP-7702 authorization lists. You can now construct and send 7702 authorizations with the following functions:
signAuthorization
: Generate authorization signaturesprepareTransaction
: AddedauthorizationList
parameter
Manual Smart Account Deployment
Added deploySmartAccount
function to explicitly deploy smart account contracts.
Improvements 🔧
Smart Account Signatures
Deployed smart accounts now use the legacy signature behavior (ERC-1271) rather than ERC-6492 pre-deploy signatures.

Features 🚀
Retrieve In-App Wallet Smart Wallet Admin Account
We've added the getAdminAccount
method to inAppWallet interfaces when using Account Abstraction (AA), including gasless ecosystem wallets. This addition allows developers to retrieve the admin account for AA-compatible in-app wallets.
Improvements 🔧
Enhanced Modal Control
We've added a new onClose
callback option to Connect Details modal, providing developers with greater control over modal behavior and user interactions. The callback receives the last active screen name when the user closes the modal, enabling better UX flows and analytics.
Auto-Connect onTimeout Callback
We've also added an onTimeout
callback in useAutoConnect hook to handle connection timeout scenarios gracefully. Timeouts can happen if the user has previously connected a wallet, but we're unable to reconnect to that wallet.
Bug Fixes 🐛
Smart Account Transactions
We fixed an issue where smart accounts could not execute transactions on chains besides the one they were initially created on. AA transactions on chains besides the initial one now deploy the smart account on the new chain before executing the transaction
Removals and Deprecations 🗑️
Wallet Support Changes
We've removed co.lobstr from the available wallets list as it is not EVM-compatible

IThirdwebWallet.UnlinkAccount
Adds the ability to Unlink a LinkedAccount
from your In-App or Ecosystem Wallet.
EIP-7702 Integration (Experimental)
Integrates authorizationList
for any transactions.
This EIP essentially allows you to set code to an EOA, unlocking a world of possibilities to enhance their functionality.
The best way to understand it outside of reading the EIP is looking at the example below; to preface it: we sign an authorization using the wallet we want to set code to. Another wallet sends a transaction with said authorization passed in, essentially activating it. The authority wallet now has code set to it pointing to an (insecure) Delegation contract in this case, which allows any wallet to execute any call through it on behalf of the authority. In this example, we call the wallet executing both the authorization and the claim transaction afterwards, the exectuor.
An authority may execute its own authorization, the only difference is internal whereby the authorization nonce is incremented by 1.
Note that for the time being this only works on 7702-enabled chains such as Odyssey and the feature has only been integrated with PrivateKeyWallet
.
EcosystemWallet.GetUserAuthDetails
Adds the ability to retrieve auth provider specific user information from In-App and Ecosystem Wallets.
Other additions
SwitchNetwork
is now part of the mainIThirdwebWallet
interface. Smart Wallets now attempt to switch the underlying admin network automatically as well.ERC721_TotalSupply
extension now includes burned NFTs when using thirdweb contracts, allowing forERC721_GetAll
andERC721_GetOwned
functions to return said NFTs as well.- Various new utilities for conversions and transaction decoding, including decoding
authorizationList
.
Full Changelog: https://github.com/thirdweb-dev/dotnet/compare/v2.11.1...v2.12.0
Links

Christmas is around the corner and thirdweb wallets have some gifts for you!
Unlinking
If you're using the React UI components, you should now see the options to remove accounts that you might have linked by accident.

For users on typescript, this is also available as a function
This give you more flexibility to manage users account and privacy!
Custom session expiration
Some of you have been asking for custom session tokens beyond the standard 7 days we have today and we hear you.
Starting today, you will be able to set customer session expiration if you're on custom auth endpoints on JWK.
Simply return a field exp
corresponding to the Unix timestamp in seconds that you want to session token to expire.
Custom authentication endpoints
Custom JWK
Sign an exp
field in the JWT payload that is signed by your server.
Wrapping up
All these features are available today fromthirdweb@5.78.0
onwards. We have more things planned and look forward to seeing you again with more updates when the new year rolls around!
Merry Christmas and happy holidays!

We've made Engine even more reliable in v2.1.20. Here's a sample of nonce management improvements we made:
Improved handling of stuck transactions
Transactions can be stuck in mempool for multiple reasons (usually chain-specific). We made improvements to more aggressively retry transactions through including:
- Retries with increasing gas (up to 10x gas).
- Retries after a fixed amount of time, even if the RPC blocks are delayed.
- Configuration to limit the max gas to spend on resends to stay within chain limits.
- Configuration to limit how long to retry a transaction for.
Automatic nonce reset when out of funds
Engine resets the nonce when a wallet runs out of funds to ensure that after the wallet is funded, transactions are sent with correct nonces.
Retry failed transactions, even userOps
The Retry Failed Transactions now allows retrying any failed transactions including user operations.
Want to force a specific transaction to retry with the same nonce? Use the Retry Transaction (Synchronous) endpoint.
Advanced usage to manage wallet nonces
Most users should rely on Engine to manage and correct wallet nonces. If you want more direct control, the following endpoints allow you to directly manage Engine's wallet nonces. These endpoints are safe to run and intended to "fix" wallets that are stuck. Be warned they may cancel any pending transactions with those nonces.
Reset nonce state for one or all wallets
The Reset Nonces endpoint was updated to optionally allow resetting the nonce state for a single wallet (by default it resets all wallets).
Cancel nonces
A new Cancel Nonces endpoint allows you to send null transactions with high gas to effectively "cancel" pending transactions using those nonces.
thirdweb is hiring!
The small team at thirdweb is on a mission to build the most intuitive and complete web3 platform. Our products empower over 70,000 developers each month including Shopify, AWS, Coinbase, Rarible, Animoca Brands, and InfiniGods.
See our open roles. We’d love to work with you!

We just released a new package that allows you to use thirdweb's in-app and smart wallets within you wagmi app with minimal effort. Few lines of code to add web2 sign in like google, discord, passkey, etc along with ERC-4337 smart accounts that unlock gasless transactions, batched transactions and session keys.
Install the new package
First, install the thirdweb
and @thirdweb-dev/wagmi-adapter
packages in your wagmi app.
Make sure you're running wagmi 2.14.1 or above.
Setup the connector
You probably already have a wagmi config with some connectors, simply add the inAppWalletConnector
to the list, along with the desired options.
Connect users
Now you can connect users with the desired auth strategy. Options include email, phone, passkey, google, discord, x, telegram, github, and more.
And that's it! The example above connects your users with their google account, creates an ERC4337 smart account with sponsored transactions that you can use with the rest of your wagmi app.
Happy building! 🛠️

We previously added unified identities to the thirdweb SDK, allowing users to link multiple profiles as valid authentication options within your app. However, you couldn't tell which provider they had signed in with for the current session. In thirdweb v5.77.0, we've added the getLastAuthProvider
utility to the React module, allowing you to retrieve the most recently used provider from within any web context.
Other Improvements
- Fixed a caching issue in our new headless components

Users can now publish their contracts with contract references in deploy params.
What this means is, if there are address params in your contract's constructor, you can provide a reference to another published contract for those params. These reference contracts will then be deterministically deployed before deploying your contract.
You can specify these references in publish form as shown below:

For e.g., _owner
param is of type address
and allows publisher to specify a contract reference. You can do this by selecting Dynamic Input
and providing details of the published contract. Please note that the contract being set as reference should be a published contract with default values pre-filled.
You can also setup a chain of such references, i.e. a referenced contract has another reference contract in its deploy params, and so on.
In addition to the address
type, you can also provide dynamic inputs for bytes
params. For e.g., if the bytes param is composed of address
, uint256
, and bool
, you can specify these values instead of giving an encoded bytes value. These will be encoded during deployment. The address param within this bytes param can again be a dynamic reference. See below:

This feature works for address[]
and bytes[]
params too.

Engine is used by web2 and web3 companies for production use, powering 10M+ transactions per week. Making sure your Engine is secure and your funds are safe are critical, so here's security improvements we made (v2.1.20) and what's coming up.
Security audit
We've completed our second code and infrastructure assessment from an independent third party auditor and will be sharing the report shortly.
No critical vulnerabilities were identified, and all reported issues were addressed.
Security updates
- Improved CORS response handling. Clearer logs + responses if calls are made from invalid origins.
- Added modern browser security headers to restrict unused permissions (embedding, geolocation, camera, etc.).
- Updated dependencies to address publicly reported vulnerabilities.
Other notable updates
singlePhaseDrop
added to allclaim-to
endpoints allowing users to set claim conditions and claim tokens in a single phase for custom drop contracts.gasPrice
can now be overridden allowing users to explicitly set the gas price for pre-EIP1559 chains.- Post-EIP1559 chains should continue to use
maxFeePerGas
andmaxPriorityFeePerGas
overrides, if needed.
- Post-EIP1559 chains should continue to use
- All
/mint-to
endpoints were updated to thirdweb v5 SDK and should have greatly improved response times. - Idempotency keys up to 200 characters are now supported.
- The codebase is updated with better organization and code standards, and we're enforcing linting rules moving forward.
thirdweb is hiring!
The small team at thirdweb is on a mission to build the most intuitive and complete web3 platform. Our products empower over 70,000 developers each month including Shopify, AWS, Coinbase, Rarible, Animoca Brands, and InfiniGods.
See our open roles. We’d love to work with you!

A new version of Insight is released, focusing on bringing decoded data to the API and bug fixes to the indexing logic.
Added
Decoding for events and transactions in the API
Implemented functionality to decode event logs (supporting both indexed and non-indexed parameters) and transaction inputs whenever a query is made with. partial ABI.
For example, let's say we want to query all allocated withdrawal function calls on the TheCompact
contract (0x00000000000018DF021Ff2467dF97ff846E09f48
).
The partial ABI of the function is ((bytes,uint256,uint256,uint256,uint256,address))
, however the Insight API allows for named arguments, so we can use allocatedWithdrawal((bytes allocatorSignature,uint256 nonce,uint256 expires,uint256 id,uint256 amount,address recipient) _withdrawal)
We can do the following query to insight
and receive a response
The interesting part is the decodedData
property, which contains the decoded function input arguments
Bug fixes
- Poller gap filling uses configured poll range - Introduced a limit on polling missing blocks, based on `blocksPerPoll` configuration instead of the whole missing range.
- Fixed signature calculation for partial ABI - Fixed a bug where various uint types in the partial ABI resulted in an incorrect signature
- Fixed nullpointer exception when checking if polling limit is reached
- Clickhouse delete performance - Updated to use lightweight deletes instead when handling reorgs, to reduce load on the DB
Learn more about Insight and how to use it.
Insight is open source.

We've been iterating on our next generation smart accounts contracts. They are ERC-7579 compliant modular smart accounts, unlocking the growing catalog of account modules.
This is a BETA release, so expect some changes, but you can already start playing with it on both TypeScript and DotNet SDKs.
We have published 2 contracts to get you started, a modular account factory and a simple validator module.
Stateless Modular Account Factory
A generic, un-opinionated smart account factory that lets you pick a smart account implementation and any default modules you like.
Default Validator Module
A simple validator module, with multi owner and session key support.
Usage in TypeScript SDK
Once you have deployed both of those contracts, you can use them in the SDK to deploy accounts for you users, using the new Config
smart account presets.
You now have a modular smart account wallet instance that you can use with the rest of the SDK as usual.
You can also pass this configuration to the Connect UI components:
Disclaimer
API and contracts are still in BETA - expect breaking changes and frequent updates.
Once stabilized, we will deploy a default factory and validator module on all chains which will be the default in the SDKs.
Looking for feedback
We're releasing this early so we can get some feedback from you, play with it on testnet and let us know what you think!
Happy building! 🛠️

We just added support for ERC-6492 signatures in the TypeScript and DotNet SDKs. This means that you can now sign and verify signatures for smart accounts even if they haven't been deployed yet!
If your app uses smart accounts and sign in with ethereum (SIWE), this massively improves the first time user flow. Users can simply proceed to the app: there's no wait for the account to be deployed.
It also reduces cost for app developers, since the cost of deploying smart accounts is incurred on the first transaction, rather than when signing in.
No code changes for this one, just make sure you use the latest version of the SDK on both the signing and the verifying side, or any 6492 compatible signature verification library.
Happy building! 🛠️

We've added new chains to the platform this week!
Every chain comes out of the box with SDK support RPC, Engine and Account Abstraction capabilities. All you need is the chain id to get going.
For testnets, you'll also find a faucet in each chain page.
Happy building! 🛠️

What's Changed
- Additions from Thirdweb's .NET SDK Release 2.11.0
SmartWallet.PersonalSign
no longer requires the SmartWallet to be deployed, increasing speed. Verification is done through ERC-6492. Validating a signature also works with ERC-6492 signatures now. Useful for apps that want to instantly authenticate (using Thirdweb Auth - SIWE for example) without incurring costs.purchaseData
can now be passed to Thirdweb Pay quote params, making Direct Payment flows fully featured.
InAppWalletOptions
now extendsEcosystemWalletOptions
(no changes to dx).- Slightly improved Playground UI.
Links

Added the ability to pay for gas with ERC20 tokens when using Smart Wallet.
- Currently supports Base USDC, Celo CUSD, and Lisk LSK tokens.
- Simply select a
TokenPaymaster
when creating aSmartWallet
and all transactions will be paid for with the corresponding ERC20 from the user's Smart Wallet. - Useful on L2s where the native token is ETH and you want to enshrine another coin or onramp your users directly to that coin.
- These TokenPaymasters entirely operate onchain, leveraging popular DEXes and decentralized price feeds from Uniswap & Chainlink.
- This product is in beta, and only compatible with EntryPoint v0.7.0, which we auto select for you if not overriden when configurin your wallet.
Example:
The latest update brings unparalleled marketplace integration to your fingertips! All 36 marketplace engine calls are now available in C++, Blueprints, and as async tasks, complete with supporting structs to streamline your workflow. Dive into enhanced examples, fetch IPFS nodes seamlessly, and enjoy compatibility with Unreal Engine 5.2 and 5.5 for even greater flexibility. We've cleaned up runtime settings, optimized dynamic tasks, and resolved key build errors to ensure a smooth development experience. Get ready to unlock the full potential of your marketplace projects with these powerful new tools!
What's Changed
Additions
- Bug Report and Feature Request Templates in Repo
- Missing C++ functions for exising engine calls
- All 36 marketplace engine calls in c++, Blueprints, and as async tasks with supporting structs
- Sign In With Ethereum and Link with SIWE
- Fetch IPFS nodes
- QR Code Generator for future use
Enhancements
- Unbind Route on destroy for Browser
- UE_5.2 compatibility for customer
- UE_5.5 compatibility
- Cleanup Runtime settings
- Cleanup duplicate async tasks for dynamic tasks
- Updated examples
- Updated Rust libs
Fixes
- intrinsic build errors
- OAuthBrowserWidget Error being empty
Removals
- Moved BuildPlugin to its own repo

Since introducing Smart Backend Wallets we introduced some new capabilities to Engine and over a dozen bugfixes.
Troubleshoot your webhook implementation
It is important to verify the signature header for Engine webhook calls to verify they came from your Engine. The dashboard now allows you to send a test payload to determine if your webhook endpoint is unreachable, not handling the webhook signature properly, or returning a unexpected response.
On the Webhooks dashboard page, select ... > Test webhook to send an example webhook payload to your backend and see the status code and response body.

Delete backend wallets
You can now delete backend wallets directly from the dashboard. Keep your backend wallets list tidy by removing unused backend wallets.

Better "insufficient funds" errors
Engine now estimates the required amount of gas when it attempts to send a transaction without sufficient gas funds:
Insufficient funds in 0x4Ff9aa707AE1eAeb40E581DF2cf4e14AffcC553d on Polygon Mainnet. Transaction requires > 0.000682043142837 POL.
Notable bugfixes
Lastly we've been squashing bugs to ensure your Engine handles transactions as reliably as possible.
- Fixed Contract Subscriptions to support all chain IDs (previous large chain IDs like Xai Sepolia were unsupported).
- Updated dependency libraries to address reported vulnerabilities.
- Fixed malformed transactions causing the transactions to not load in the dashboard.
- Fixed an edge case where errors for read contract calls were dropped.
- Fixed an edge case in nonce self-healing.
- Fixed Smart Backend Wallet support for certain extension endpoints.
- Handled a different RPC response that could cause a nonce to be skipped.
- See Engine release notes for more details.
thirdweb is hiring!
The small team at thirdweb is on a mission to build the most intuitive and complete web3 platform. Our products empower over 70,000 developers each month including Shopify, AWS, Coinbase, Rarible, Animoca Brands, and InfiniGods.
See our open roles. We’d love to work with you!

The Engine dashboard now shows all recent versions with timestamps and allows you to select any version to upgrade or downgrade to.
Find the improved version selector in the upper right corner of the Engine dashboard.


Why does it matter?
While Engine releases follows semantic versioning, non-major updates may add input validation or fix an incorrect response (e.g. a 500 that should have been a 400 response). These fixes correct behavior, but in rare cases this may conflict with how your backend sends or parses requests. In these cases, you can now self-service downgrade to a previous Engine version.
Example: Engine used to rely on an older SDK that did not strictly enforce ABIs. In a newer update, provided ABIs must match the proper spec. This may cause write calls that provided an incomplete ABI to start throwing an error.
What's next?
We're aiming to provide visibility in the dashboard when Engine versions change shortly. We also plan to roll out a predictable schedule when cloud-hosted Engines may receive critical security or reliability updates.
thirdweb is hiring!
The small team at thirdweb is on a mission to build the most intuitive and complete web3 platform. Our products empower over 70,000 developers each month including Shopify, AWS, Coinbase, Rarible, Animoca Brands, and InfiniGods.
See our open roles. We’d love to work with you!

What's Changed
- Added
AuthProvider.Steam
as a login option for In-App or Ecosystem Wallets.
- Added the ability to pay for gas with ERC20 tokens when using Smart Wallet.
- Currently supports Base USDC, Celo CUSD, and Lisk LSK tokens.
- Simply select a
TokenPaymaster
when creating aSmartWallet
and all transactions will be paid for with the corresponding ERC20 from the user's Smart Wallet. - Useful on L2s where the native token is ETH and you want to enshrine another coin or onramp your users directly to that coin.
- These TokenPaymasters entirely operate onchain, leveraging popular DEXes and decentralized price feeds from Uniswap & Chainlink.
- This product is in beta, and only compatible with EntryPoint v0.7.0, which we auto select for you if not overriden when configurin your wallet.