Changelog

The Transactions API now supports EIP7702 session key authorization for gasless transaction execution. Server wallets can execute transactions on behalf of user accounts with full gas sponsorship from the infrastructure.

Implementation

curl -X POST "https://engine.thirdweb.com/v1/write/transaction" \
  -H "content-type: application/json" \
  -H "x-secret-key: <your-secret-key>" \
  -d '{
    "executionOptions": {
      "type": "EIP7702",
      "chainId": "84532",
      "sessionKeyAddress": "<server-wallet-address>",
      "accountAddress": "<user-account-address>"
    },
    "params": [
      {
        "to": "0x...",
        "data": "0x...",
        "value": "0x0"
      }
    ]
  }'

Parameters

• sessionKeyAddress: Server wallet address with session key authorization
• accountAddress: User account that issued the session key
• type: Must be set to EIP7702 for session key execution
• Gas costs: Fully sponsored by Transactions API infrastructure

Your server wallet must be registered as authorized session key signer on the accountAddress you want to send this transaction on behalf of.

We just enabled batch execution for EOAs, allowing you to execute multiple transactions atomically in a single call.

How to use batch execution

Simply pass multiple items in your params array. All transactions will be executed atomically:

curl -X POST "https://engine.thirdweb.com/v1/write/transaction" \
  -H "content-type: application/json" \
  -H "x-secret-key: <your-secret-key>" \
  -d '{
    "executionOptions": {
      "type": "EOA",
      "chainId": "84532",
      "from": "<your-eoa-address>"
    },
    "params": [
      {
        "to": "0x...",
        "data": "0x...",
        "value": "0x0"
      },
      {
        "to": "0x...",
        "data": "0x...",
        "value": "0x0"
      },
      {
        "to": "0x...",
        "data": "0x...",
        "value": "0x0"
      }
    ]
  }'

EOA Upgrade Required

Engine uses EIP7702 internally for batch execution, which requires your EOA to be "upgraded". If your EOA isn't already upgraded, you can send a no-op EIP7702 transaction to upgrade it:

curl -X POST "https://engine.thirdweb.com/v1/write/transaction" \
  -H "content-type: application/json" \
  -H "x-thirdweb-secret-key: <your-secret-key>" \
  -d '{
    "executionOptions": {
      "type": "EIP7702",
      "chainId": "84532",
      "from": "<your-eoa-address>"
    },
    "params": [
      { "to": "<your-eoa-address>"}
    ]
  }'

After this upgrade transaction, you can use batching with the same EOA.

Happy building! 🛠️

You can now instantly swap between tokens and chains using any thirdweb wallet with the https://api.thirdweb.com/v1/payments/swap endpoint. Using exact you can toggle between specifying an input and output amount to be received. Learn more and see the full reference here.

We just enabled AWS KMS wallet support for the Transactions API, allowing you to use your AWS KMS-managed keys directly.

How to use AWS KMS wallets

Add the AWS KMS headers to your Engine API calls:

curl -X POST "https://engine.thirdweb.com/v1/write/transaction" \
  -H "content-type: application/json" \
  -H "x-secret-key: <your-secret-key>" \
  -H "x-aws-kms-arn: <your-kms-key-arn>" \
  -H "x-aws-access-key-id: <your-access-key>" \
  -H "x-aws-secret-access-key: <your-secret-key>" \
  -d '{
    "executionOptions": {
      "type": "EOA",
      "chainId": "1",
      "from": "<your-kms-wallet-address>"
    },
    "params": [{
      "to": "0x...",
      "data": "0x...",
      "value": "0x0"
    }]
  }'

Migrating from Engine v2?

If you're using AWS KMS wallets with Engine v2, you can now migrate to Engine Cloud seamlessly using the same KMS configuration.

Please avoid using EOA execution on both Engine v2 and Engine Cloud simultaneously with the same wallet on the same chain - this will cause nonce conflicts. Consider testing your integration on a different chain, and them migrating fully.

Happy building! 🛠️

We've made significant changes to how the payment widgets (BuyWidget, CheckoutWidget, and TransactionWidget) generate quotes for every available token. This allows users to find the best possible quote available to them, rather than needing to guess with token to pay with.

Try the improved quote discovery in our playground or on version 5.105.24 or later of the React SDK.

Unreal Engine 5.6 is now supported by thirdweb's Unreal Plugin.

You can download the plugin from our Github Release.

This release is also available on the Fab marketplace!

thirdweb Payments have made it easy to integrate monetization tools into apps with drop-in widgets and SDKs. Now, we're making it even easier with hosted payment links.

You can get paid by anyone, anywhere, and in any token using thirdweb's Payment Links. Links can be created in the dashboard or via the payments API. We've also redesigned our payment's dashboard for easier feature discovery and usage.

Full support for v7 Account Factories and Entrypoints has been added.

Rust static libraries have been updated, and Smart Wallet creation now includes a new advanced EntryPoint parameter.

When using our default v7 Account Factory, or a custom one based on the v7 standard, you can provide the v7 EntryPoint address to override the default v6 behavior.

• v6 Default Factory: 0x85e23b94e7F5E9cC1fF78BCe78cfb15B81f0DF00
• v6 EntryPoint: 0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789
• v7 Default Factory: 0x4bE0ddfebcA9A5A4a617dee4DeCe99E7c862dceb
• v7 EntryPoint: 0x0000000071727De22E5E9d8BAf0edAc6f37da032

You can find the latest release on Github.

We’ve rebuilt the thirdweb developer platform for the AI-native era. You can now build apps 80% faster with our new HTTP API, MCP server and new LLM optimized documentation. We've also re-organized the platform to be simpler and better organized.

• New HTTP API → We created a new API which combines all services with a simplified interface. Optimized for humans and agents.
• New MCP server → Interact with the thirdweb platform from your favorite LLM client.
• New LLM-optimized documentation → inject these into your prompts to instruct coding agents to build with thirdweb
• New Project and documentation organization → Projects and docs are now organized to follow the new product structure

• Manage user and server wallets
• Transact gasless-ly with highly performant EIP7702 execution
• Query any blockchain data both indexed and real time
• Monitor all your transactions on your project dashboard

Check out the full api reference.

The entire thirdweb platform is now available as a remote MCP server: https://api.thirdweb.com/mcp. Perfect for building agents, or directly interacting with the thirdweb platform from your favorite LLM client.

Check out our new MCP documentation for more details.

Inject knowledge into your coding agent by copying our new llms.txt into your project or your prompts. Example prompt:

Add a login screen that lets the user enter the email and confirm a verification code, then display their email and wallet address in the header. Docs: https://api.thirdweb.com/llms.txt

Check out our available llm optimized doc files.

We've organized the dashboard and documentations around our new main categories: Wallets, Transactions, Contracts, Payments, Tokens and Marketplace.

You'll see this grouping reflected all across the product for a more cohesive and predictable experience.

1. Create a new or use an existing project in the thirdweb dashboard
2. Discover the new API: authenticate using your project’s secret key and start exploring the new endpoints for Wallets, Contracts, Payments, etc. See the documentation reference.
3. Work with AI: test the MCP server in your favorite LLM client, or inject our new llms.txt and build apps in minutes

If you’re already using our APIs or SDKs, no action is required.

• You can continue using your existing setup
• Gradual adoption is supported, if desired, and you can migrate endpoint-by-endpoint if you like
• Your current auth keys and project still work and nothing is changing on your current build.

If you use the upgraded API, all actions — whether client-side or server-side — show up in the dashboard. That means better monitoring, logs, transaction lifecycle tracking, and visibility across your app.

Q: Will the old APIs or SDKs be deprecated?

No. SDKs and dedicated service APIs are here to stay and will continue to evolve as before towards the new product simplification without any breaking changes.

Q: How are the upgraded services priced?

Services are priced as they are currently- no changes. Requests will be charged based on usage to the underlying infrastructure. See our pricing page for more details.

Q: Will portal docs change?

Yes. We’re gradually reorganizing our portal to match the new interfaces. You will see a lot of changes coming up daily. We will still ensure users on existing services have relevant documentation available.

If you need help on finding anything please let us know.

And as always, we are here for support. Our team will be on standby for support around the upgraded API. Please join us for any feedback or questions in our community Telegram channel.

What’s New

• Support Tab: A new “Support” tab is now available on the team sidebar
• AI Agent: Get quick answers with our built-in AI support chat
• Case Management: Create, track, and manage support cases directly from your dashboard

How It Works

• Open a new case for the thirdweb team to review
• View the status and history of existing cases
• Use the AI agent for instant guidance on common issues

Next Steps

• Go to your team in the dashboard and click on the Support tab
• For support SLAs by plan, visit: thirdweb.com/pricing
• For general response time expectations, see: portal.thirdweb.com/knowledge-base#3-response-time-expectations

We just enabled EOA execution for server wallets, allowing you to self fund your own server wallets, and directly executing onchain transactions from them.

Set type: "EOA" in your executionOptions and pass your server wallet EOA address (signer).

Remember to fund the EOA with some native currency on that chain!

curl -X POST "https://engine.thirdweb.com/v1/write/contract" \
  -H "Content-Type: application/json" \
  -H "x-secret-key: <your-project-secret-key>" \
  -d '{
    "executionOptions": {
      "type": "EOA",
      "from": "<your-EOA-server-wallet-address>",
      "chainId": "84532"
    },
    "params": [
      {
        "contractAddress": "0x...",
        "method": "function mintTo(address to, uint256 amount)",
        "params": ["0x...", "100"]
      }
    ]
  }'

If your EOA runs out of funds, the transactions will be paused until you send some funds to it, then all transactions will resume automatically.

Happy building! 🛠️

We just enabled EIP7702 for server wallets, resulting in 4x faster sponsored transactions from sending to confirming when compared to ERC4337 execution.

Simply pass your server wallet EOA address (signer), execution will automatically default to EIP7702 execution and sponsor gas for the transaction.

curl -X POST "https://engine.thirdweb.com/v1/write/contract" \
  -H "Content-Type: application/json" \
  -H "x-secret-key: <your-project-secret-key>" \
  -d '{
    "executionOptions": {
      "from": "<your-EOA-server-wallet-address>",
      "chainId": "84532"
    },
    "params": [
      {
        "contractAddress": "0x...",
        "method": "function mintTo(address to, uint256 amount)",
        "params": ["0x...", "100"]
      }
    ]
  }'

You can also explicitly enable it by passing type: "EIP7702" in the execution options. Other execution types are "ERC4337" and "EOA".

If you pass your smart contract wallet address, by default engine will use ERC4337 execution like before, no changes needed.

Take advantage of EIP7702 for your server wallets and let us know about your experience!

We've made significant improvements to the Payments (Universal Bridge) API's performance, improving average latency from 900ms to under 300ms. You can now get quotes, routes, token prices, and more in a third of the time. Our Payments API powers advanced user-centric UIs using our Payments Widgets, try them out here.

We’ve redesigned the ERC20 contract page to improve usability, shareability, and conversion. This update is live for all ERC20 contracts - including the ones you deploy from thirdweb dashboard

The Buy Token section is now placed at the top, making it easier for users to purchase tokens immediately. This also makes the page ideal for sharing with your community or end users.

The Token Price Chart has been moved further down to prioritize key actions and reduce visual clutter.

Several visual enhancements offer a cleaner, more user-friendly experience.

Checkout the updated layout for some popular tokens

• USDC on Base
• USDC on ethereum
• Shiba Inu on ethereum

Breaking Change: The Nebula API now requires a paid subscription plan. Free usage is limited to essential testing purposes.

• Free Tier: Limited to 1 RPS and 3 RPM (for testing only)
• Paid Plans Required: Production usage now requires one of the following plans:
  • Starter: 1 RPS, 10 RPM
  • Growth: 5 RPS, 100 RPM
  • Scale: 10 RPS, 500 RPM
  • Pro: 30 RPS, 1500 RPM
  • Custom: Reach out!

• Review your current Nebula API usage and update your integration to handle the new rate limits
• Select an appropriate plan on your team account on the dashboard

For questions about plan selection or enterprise needs, contact the thirdweb team.

You can now use the Transaction API with just your project secret key.

When you create a new project, we now initialize a secure Vault automatically for you which lets you create server wallets and transact immediately with just your project secret key.

curl -X POST "https://engine.thirdweb.com/v1/write/contract" \
  -H "Content-Type: application/json" \
  -H "x-secret-key: <your-project-secret-key>" \
  -d '{
    "executionOptions": {
      "from": "<your-server-wallet-address>",
      "chainId": "84532"
    },
    "params": [
      {
        "contractAddress": "0x...",
        "method": "function mintTo(address to, uint256 amount)",
        "params": ["0x...", "100"]
      }
    ]
  }'

• Before: Performing transactions with your server wallets required BOTH a project secret key (x-secret-key) AND a vault access token (x-vault-access-token).
• After: You can now do server wallet transactions with ONLY your project secret key

Your project secret key is now all you need to access thirdweb infrastructure and your server wallets from your backends.

If you've already created a vault for your project, nothing changes, you can continue using your vault access tokens normally.

When you create a project, we generate a secret key that only you have access to. We do not store that secret key only a hash of it. At project creation time, we now generate a Vault access token, encrypt with your project secret key, and store it.

This lets you now interact with your vault as long as you pass your secret key to the thirdweb transaction API.

At any point, you can choose to take control of your own Vault keys by revoking the Vault keys from the vault tab. This will invalidate any previous keys and generate new ones that you can store those yourself.

Happy building!

You can now search users by email, phone, id or address in your project or ecosystem by navigating to the Users tab.

Select the search criteria, type a value and hit search. Great for quickly finding user associated addresses or emails.

Happy building!

The v1/tokens endpoint in Insight API now supports sorting by various attributes.

New sort_by and sort_order query parameters have been added. The following attributes are supported:

• token_address - sort tokens alphabetically
• token_price - sort based on the USD price of the token
• usd_value - sort based on the USD value of the token per wallet, meaning balance multiplied by the token price
• balance - sort based on the balance of the token for a wallet

sort_order can be either asc or desc

Try it out on our playground!

Additionally, another parameter was added, called include_without_price . This is true by default to have all tokens included, but setting it to false will remove tokens that do not have price data in the response.

...

These additions make the API better suited to be used in wallet applications to show user balances and present the data in the most useful way to the user.

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

Version 5.105 spans accross multiple patch releases. It introduces more flexible payment options, upgrades wallet connectivity, new eip-7702 session key capabilities and delivers a range of UI and developer‑experience refinements.

• Payment widgets
  • New currency prop in payment widgets to control what currency to display (USD, EUR, JPY, etc)
  • New paymentMethods prop ("crypto" / "card") to control available methods
  • Optional showThirdwebBranding flag to hide the badge
  • Show all wallet tokens in payment flow, including low balance ones
  • Optimised token‑fetch logic and better large‑number handling
  • “Unsupported Token” fallback screen and sponsored‑gas handling
  • feePayer is now respected for choosing which party will pay the transfer fees (seller or user)
    
• Wallet connectivity
  Migrated connection UI widgets and core functions to WalletConnect Universal Provider for faster, multi‑chain sessions on both web and react native platforms.
  
• Session keys & admin safeguards
  Added createSessionKey extension for EIP‑7702 In‑App Wallets. This comes with fine grained session key permissions, from function selector to specific argument value to time bound and recurrent permissions. You can now for example add a session key which allows to spend 10 USDC per month.
  
• Wallet & chain coverage
  • Frame Wallet added
  • Wallet definitions refreshed
  • Trex Testnet, Somnia Testnet and other core chains registered
    
• Type & API updates
  • purchaseData now strictly typed
  • Upgraded to Engine v3 APIs
    
• On‑ramp webhook parsing
  Universal Bridge can now parse on‑ramp webhooks for strongly typed webhook payloads.
  
• PayEmbed deprecated
  Existing flows should migrate to newer widgets: BuyWidget, CheckoutWidget and TransactionWidget.
  

Insight API now supports two new features for NFT and token balance endpoints.

v1/tokens and v1/nfts endpoints now supports filtering the balances of a wallet by contract addresses.

For tokens, you can add a token_address query filter.

For NFTs, you can use contract_address in the query params.

Both endpoints support multiple contract filters - e.g. ?contract_address=0x...&contract_address=0x...

v1/tokens and v1/nfts endpoints also added support for multiple owner_address query filters so you can get the balances of multiple wallets in the same query!

For example, to get the token balances of both vitalik.eth and barmstrong.eth you can make the following call to Insight

curl 'https://insight.thirdweb.com/v1/tokens?chain=1&metadata=true&include_native=true&limit=5&owner_address=vitalik.eth&owner_address=barmstrong.eth'

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

EIP-7702 execution mode for In-App and Ecosystem Wallets is now available on Berachain Mainnet & Berachain Bepolia!

Berachain: RPC and Chain Settings

Use the best Berachain RPC and add to your wallet. Discover the chain ID, native token, explorers, and more.

Berachain Bepolia: RPC and Chain Settings

Use the best Berachain Bepolia RPC and add to your wallet. Discover the chain ID, native token, explorers, and faucet options.

These are the chains we now support, if you'd like us to support more, reach out to support!

• Ethereum (Chain ID: 1)
• Gnosis (Chain ID: 100)
• BNB Smart Chain (BSC) (Chain ID: 56)
• Optimism (Chain ID: 10)
• Base (Chain ID: 8453)
• Ink (Chain ID: 57073)
• Unichain (Chain ID: 130)
• Zora (Chain ID: 7777777)
• Soneium (Chain ID: 1868)
• Mode (Chain ID: 34443)
• Scroll (Chain ID: 534352)
• Arbitrum (Chain ID: 42161)
• Berachain (Chain ID: 80094)

• Sepolia (Ethereum) (Chain ID: 11155111)
• Gnosis Chiado (Chain ID: 10200)
• BSC Testnet (Chain ID: 97)
• Optimism Sepolia (Chain ID: 11155420)
• Base Sepolia (Chain ID: 84532)
• Ink Sepolia (Chain ID: 763373)
• Unichain Sepolia (Chain ID: 1301)
• Zora Sepolia (Chain ID: 999999999)
• Soneium Minato (Chain ID: 1946)
• Mode Sepolia (Chain ID: 919)
• Scroll Sepolia (Chain ID: 534351)
• Arbitrum Sepolia (Chain ID: 421614)
• Berachain Bepolia (Chain ID: 80069)

Engine Cloud exits beta with a complete architectural overhaul powered by our new Rust-based Engine Core. This update introduces simplified APIs, comprehensive transaction monitoring, and significant performance improvements.

Engine Cloud is now built on Engine Core, our new open-source Rust-based blockchain transaction infrastructure. The Engine Core repository is now public.

Key improvements include:

• Sub-second API response times (< 40ms server latency for transactions, < 10ms for status)
• Horizontal scaling through Redis-backed job queues with configurable worker pools
• Memory safety and zero-cost abstractions from Rust
• Improved nonce management and transaction batching
• Enhanced error handling with detailed context

Signature endpoints now use a new signingOptions parameter that replaces the previous executionOptions structure across all signature routes.

Before:

{
  "executionOptions": {
    "from": "0x...",
    "chainId": 137
  }
}

After:

{
  "signingOptions": {
    "type": "eoa",
    "from": "0x...",
    "chainId": 137
  }
}

ERC-4337 Smart Accounts support intelligent defaults with minimal configuration:

{
  "signingOptions": {
    "type": "ERC4337",
    "signerAddress": "0x...",
    "chainId": 137,
    "entrypointVersion": "v0.7"
    // Optional: smartAccountAddress, accountSalt, entrypointAddress, factoryAddress
  }
}

When using thirdweb's default account factory, specifying entrypointVersion automatically configures the appropriate entrypoint and factory addresses:

• v0.6: 0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789 (entrypoint), 0x85e23b94e7F5E9cC1fF78BCe78cfb15B81f0DF00 (factory)
• v0.7: 0x0576a174D229E3cFA37253523E645A78A0C91B57 (entrypoint), 0x4bE0ddfebcA9A5A4a617dee4DeCe99E7c862dceb (factory)

The system automatically infers missing values when not explicitly provided, supporting both v0.6 and v0.7 standards.

Response handling is now more intuitive for single fallible operations like signMessage:

Before:

{
  "result": {
    "results": [
      {"success": true, "data": "0x..."},
      {"success": false, "error": "Invalid signature"}
    ]
  }
}

After:

{
  "result": [
    {"result": "0x..."},
    {"error": "Invalid signature"}
  ]
}

The new Activity Logs system provides visibility into transaction lifecycle and Engine operations:

• Real-time status tracking from submission to confirmation
• Detailed error context for failed transactions
• Performance metrics including gas usage and timing
• Debug information for troubleshooting

Access via dashboard or API:

GET /transactions/activity-logs?transactionId={queueId}

No breaking changes. Existing ServerWallet implementations continue working—simply upgrade your SDK version:

npm install thirdweb@5.105.2

const serverWallet = Engine.serverWallet({
  address: "0x...", // your wallet address
  chain: sepolia, // or your target chain
  client: thirdwebClient,
  vaultAccessToken: "your_vault_token",
});
 
// All existing methods work identically
const result = await serverWallet.sendTransaction(tx);

Update signature endpoints to use the new signingOptions parameter. Most use cases only require changing the parameter name while keeping the same values.

Engine Cloud is now generally available:

1. Create a thirdweb project
2. Complete Transactions API onboarding to create server wallets and vault access tokens
3. Start making API calls!

Engine Documentation → | API Reference →

• Various improvements and fixes related to session resuming; OAuth, Email and Phone login options should automatically resume much more often, with memory optimizations as well. In practice, this means that after creating your wallet, the IsConnected node will return true much more often, allowing you to skip the user action that typically is required.

Github Release

• Enhanced advanced session key management for compatible wallets, including creation of session keys with granular permissions and policies.
• Added ability to check signer permissions, retrieve session expiration, and inspect session and policy details for signers.
• Expanded data models to represent session states and permission limits for improved session management visibility.
• Enhanced in-code examples and comments to illustrate session key workflows and permission management.

.NET Release | NuGet Release | Unity Release

Documentation | Support

EIP-7702 execution mode for In-App and Ecosystem Wallets is now available on Arbitrum Mainnet!

Arbitrum One: RPC and Chain Settings

Use the best Arbitrum One RPC and add to your wallet. Discover the chain ID, native token, explorers, and more.

These are the chains we now support, if you'd like us to support more, reach out to support!

• Ethereum (Chain ID: 1)
• Gnosis (Chain ID: 100)
• BNB Smart Chain (BSC) (Chain ID: 56)
• Optimism (Chain ID: 10)
• Base (Chain ID: 8453)
• Ink (Chain ID: 57073)
• Unichain (Chain ID: 130)
• Zora (Chain ID: 7777777)
• Soneium (Chain ID: 1868)
• Mode (Chain ID: 34443)
• Scroll (Chain ID: 534352)
• Arbitrum (Chain ID: 42161)

• Sepolia (Ethereum) (Chain ID: 11155111)
• Gnosis Chiado (Chain ID: 10200)
• BSC Testnet (Chain ID: 97)
• Optimism Sepolia (Chain ID: 11155420)
• Base Sepolia (Chain ID: 84532)
• Ink Sepolia (Chain ID: 763373)
• Unichain Sepolia (Chain ID: 1301)
• Zora Sepolia (Chain ID: 999999999)
• Soneium Minato (Chain ID: 1946)
• Mode Sepolia (Chain ID: 919)
• Scroll Sepolia (Chain ID: 534351)
• Arbitrum Sepolia (Chain ID: 421614)

Building on the EIP-7702 Account Abstraction and transaction sponsorship introduced in .NET v2.21.0 and Unity v5.21.0, this release extends Session Key functionality to EIP-7702 Smart EOAs. Session Keys enable granular permission delegation to external wallets for executing transactions on your behalf.

• Permission Delegation: Grant time-limited access to external wallets
• Granular Controls: Define precise execution permissions per session
• Smart EOA Integration: Now available for EIP-7702-powered In-App Wallets, inspired by and improved from Smart Wallet session keys
• Backend Flexibility: Delegate transaction execution to external systems while maintaining control

Create session keys with either full permissions or custom policies:

// Grant full permissions for 24 hours
var sessionKeyReceipt = await smartEoa.CreateSessionKey(
    chainId: chain,
    signerAddress: await Utils.GetAddressFromENS(client, "vitalik.eth"),
    durationInSeconds: 86400,
    grantFullPermissions: true
);
// Grant custom permissions
var sessionKeyReceipt = await smartEoa.CreateSessionKey(
    chainId: chain,
    signerAddress: await Utils.GetAddressFromENS(client, "vitalik.eth"),
    durationInSeconds: 86400,
    grantFullPermissions: false,
    callPolicies: new List<CallSpec>(), // Contract interaction rules
    transferPolicies: new List<TransferSpec>() // Value transfer rules
);

const int chain = 11155111; // 7702-compatible chain
// Initialize EIP-7702 wallet
var smartEoa = await InAppWallet.Create(
    client, 
    authProvider: AuthProvider.Guest, 
    executionMode: ExecutionMode.EIP7702Sponsored
);
// Authenticate and upgrade EOA
if (!await smartEoa.IsConnected())
{
    await smartEoa.LoginWithGuest(defaultSessionIdOverride: Guid.NewGuid().ToString());
}
// Execute upgrade transaction (optional)
var receipt = await smartEoa.Transfer(
    chainId: chain, 
    toAddress: await Utils.GetAddressFromENS(client, "vitalik.eth"), 
    weiAmount: 0
);
// Verify account delegation (optional)
var isDelegated = await Utils.IsDelegatedAccount(client, chain, await smartEoa.GetAddress());
// Create session key
var sessionKeyReceipt = await smartEoa.CreateSessionKey(
    chainId: chain, 
    signerAddress: await Utils.GetAddressFromENS(client, "vitalik.eth"),
    durationInSeconds: 86400,
    grantFullPermissions: true
);

Once created, these session keys can be used to:

• Delegate transactions to backend services while maintaining security boundaries
• Enable temporary access for third-party services
• Create specialized roles with limited permissions
• Automate workflows without exposing primary wallet credentials

The session key mechanism opens up numerous possibilities for secure, permissioned delegation patterns while maintaining full control over your assets and contracts.

.NET Release | NuGet Release | Unity Release

Documentation | Support

We've made some exciting improvements to the indexing pipeline of Insight and have managed to reduce the block lag by up to 80%!

What is block lag? - Each block included in the blockchain has a timestamp of when it was constructed. Block lag, in the case of Insight, shows the difference between the block timestamp and when it is queryable via the Insight API.

For example, on Base we were able to the block lag from around 18 seconds on average to around 5 seconds on average.

On Donatuz, we were able to reduce the block lag from an average of 15 seconds to under 2 seconds consistently!

These are just a few examples, but we have applied these optimizations to all the chains Insight supports and we will be continuing work on improving Insight all around.

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

Insight token transfers and NFT transfers endpoints have gotten a few updates.

You can now filter transfers by the block timestamp, similarly to the previously available block number filter. The following query parameters are now available:

• block_timestamp_from - to query transfers made starting from this timestamp
• block_timestamp_to - to query transfers made until this timestamp

Timestamp format is either a unix timestamp or milliseconds from the epoch.

Another addition is the contract_address query filter, which you can use to only look at transfers for specific tokens or NFT collections.
The endpoints also accept multiple e.g ?contract_address=0x321...&contract_address=0x123...

By default, all transfers are sorted by in a descending order by block number and in an ascending order by the log index (position in the block).

The sort_order query param controls the direction of the block number sort, so you can list the transfers either from oldest or newest.

We've also removed a few query parameters from v1/tokens/transfers that had no effect previously. The parameters were: resolve_metadata_links , sales and the sale option from transfer_type.

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

We’ve redesigned the contract pages on thirdweb.com/<chain>/<contract-address> to be cleaner, simpler, and more user-friendly — making them perfect for sharing with your community or users.

These pages no longer include contract management features like Setting permissions, Updating settings, Managing claim conditions, Minting tokens etc

Instead, they now focus on: Promoting your primary sales, Showcasing contract analytics, Displaying recent transfers etc

Here are few examples:

View example page

View example page

View example page

All advanced contract management tools are still available — they’ve just moved.

You can now access the full contract admin UI at following URL:
/team/<team>/<project>/contract/<chain>/<contract>

To access it

1. Go to your Team > Project > Contracts tab
2. Find your contract in the table
3. Click the contract row to open its full contract management interface

If the contract isn’t part of your project yet, you’ll need to import it first. Just click “Import Contract” in the top-right of the Contracts page and enter the contract’s address and chain.

We've released three new payments components to cover any use case your onchain app might need. Please note these components are still in beta and their interfaces are subject to change.

Let users buy your token using any token and from any chain with the BuyWidget

import { BuyWidget } from "thirdweb/react";
 
function App() {
  return (
    <BuyWidget
      client={client}
      chain={chain}
      amount="0.01"
      tokenAddress="0x..." // Optional: ERC20 Token contract address
      recipient="0x..." // Optional: recipient address
      theme="light" // Optional: "light" or "dark"
    />
  );
}

A drop-in checkout experience for digital and physical assets.

import { CheckoutWidget } from "thirdweb/react";
 
function App() {
  return (
    <CheckoutWidget
      client={client}
      chain={defineChain(42161)}
      amount={0.0002}
      seller="0x2a4f24F935Eb178e3e7BA9B53A5Ee6d8407C0709"
    />
  );
}

A UI for any onchain transaction, paid for with funds from any chain.

import { TransactionWidget } from "thirdweb/react";
import { prepareContractCall } from "thirdweb";
 
function App() {
  const transaction = prepareContractCall({
    contract: myContract,
    method: "transfer",
    params: [recipientAddress, amount],
  });
 
  return (
    <TransactionWidget
      client={client}
      transaction={transaction}
      onSuccess={(result) =>
        console.log("Transaction successful:", result)
      }
      onError={(error) => console.error("Transaction failed:", error)}
      theme="light" // Optional: "light" or "dark"
    />
  );
}

We're excited to announce Nebula v0.1.0, our most comprehensive update yet! This release transforms Nebula into a universal DeFi protocol expert with the ability to execute any contract function across all EVM chains. Whether you're interacting with Uniswap, Aave, or any custom protocol, Nebula now has the knowledge and execution capabilities to handle it all.

Live now at nebula.thirdweb.com!

Nebula now comes equipped with comprehensive knowledge of 50+ major DeFi protocols across all EVM chains. From household names like Uniswap, Aave, and Curve to specialized protocols like Lido, MakerDAO, and Compound - Nebula understands them all.

Our new intelligent research system automatically discovers new protocols, analyzes their contracts, and generates up-to-date documentation for Nebula, to be added periodically. As the DeFi ecosystem evolves, Nebula evolves with it.

Our new enhanced agentic approach now supports arbitrary contract execution with sophisticated parameter handling. Whether you're:

• Swapping tokens on a DEX
• Providing liquidity to a pool
• Staking in a yield farm
• Querying live APY

Nebula can prepare and execute any transaction across any chain.

Nebula is now provided with instant access to cached protocol data, contract addresses, and deployment details. No more waiting for on-chain lookups - Nebula already knows where everything is deployed and how it works.

Behind the scenes, Nebula now automatically generates comprehensive protocol documentation by combining on-chain analysis with web research. This means every interaction is backed by the latest, most accurate information about how protocols actually work.

We've significantly improved Nebula's function calling capabilities with better parameter validation and error handling. The agent now makes fewer mistakes and provides clearer feedback when things go wrong.

• Parallel Image Generation: Visual content now generates concurrently for faster responses
• Specialized Transaction Tools: Split transaction and event aggregation into focused tools for better accuracy
• Enhanced Memory Management: Improved context handling for complex multi-step protocol interactions

Here's how the new capabilities work together. Ask Nebula:

"Provide liquidity to the USDC/ETH pool on Uniswap V3"

Nebula will:

1. Research the current pool parameters and optimal price ranges
2. Prepare any required approvals
3. Prepare the Uniswap V3 liquidity provision transaction

Once successfully executed, Nebula can collect fees, monitor performance, withdraw liquidity or execute any other on-chain interaction.

All of this happens seamlessly across protocols, with Nebula understanding the nuances of each platform.

• Advanced Web Search: Better protocol-specific query handling and result filtering, for information that isn't already cached by Nebula
• Cross-Chain Compatibility: Enhanced support for protocol interactions across different EVM chains
• Improved Error Handling: More informative error messages and recovery suggestions
• Better Transaction Aggregation: More accurate grouping and analysis of related transactions

With this foundation of universal protocol knowledge and arbitrary contract execution, we're laying the groundwork for even more powerful DeFi automation and strategy execution. Stay tuned for exciting developments in the coming releases!

Ready to explore the full potential of DeFi with Nebula v0.1.0? Try asking about your favorite protocol - chances are, Nebula already knows all about it.

Until now, token prices in Insight were only available through dedicated /price endpoints — useful, but disconnected from the broader token experience.

Starting today, latest price data is embedded directly into all routes that can return fungible token metadata — including /v1/tokens/balances & v1/tokens/transfers with metadata flag set to true . That means you’ll now see up-to-date pricing info (like price_usd, percent_change_24h, volume_24h_usd, and more) inline with your token balances and other metadata-rich responses.

This change makes it drastically easier to surface value and context in a single call — whether you're showing wallet assets, building dashboards, or triggering logic based on price.

A few more notes:

• This works for both ERC-20 and native tokens.
• Currently this is powered by the offchain aggregated price feeds, but we'll work expending the strategies further.
• Some niche tokens might not have price data (yet) — but future updates will improve coverage and enable better filtering of spammy or scammy assets based on this info.

Price data just got a lot more accessible — and this is only the beginning!

Let us know what you think!
We're always looking to improve how we serve token data — if you're using this in your app, tooling, or analytics pipeline and have thoughts, feature requests, or sharp criticism: we want to hear it. Just drop us a line in Discord or open a discussion on GitHub.

Users can now track fungible and non-fungible token transfers more reliably — even when the same event signature (like Transfer) is used across multiple token standards.

• 🔄 Multi-ABI Decoding: Webhooks now support decoding the same event signature using multiple ABIs. This is especially useful for events like Transfer that appear in both ERC-20 and ERC-721 contracts with different parameter structures.
• 💥 Fallback Decoding: If the first ABI fails to decode the event, we now try all provided ABIs until one succeeds — making decoding more robust.
• 🧪 Better Decoding for Edge Cases: For example, events with empty data fields ("0x") are now handled gracefully, and error handling during decoding has been improved.

We also updated the docs to help developers integrate with AI agents or build smart event-driven systems:

• Clearer instructions on setting up and managing webhooks via the Insight API
• New examples of multi-ABI event filters, including how to handle both ERC-20 and ERC-721 Transfer events
• Payload structure explained in more depth for downstream agent consumption

Don't forget to check the docs here!

Many token standards reuse the same event signature hash (Transfer(address,address,uint256)), but the meaning and structure can differ. This update makes sure your webhook will correctly decode whichever version it encounters.

📌 Note: This feature is currently available via API only — improved UI/UX support for creating and managing multi-ABI filters is on the roadmap!

Let us know if you need help setting up multi-ABI filters for your use case — or if there’s another event format we should support next.

We've integrated EIP-1271 and EIP-6492 Smart Wallet signing into the UE SDK so you can verify auth seamlessly from your backend without having to deploy your smart wallets.

No changes to your code are required, simply upgrade to the latest SDK, and your signatures will now match what most authentication systems expect from smart wallets.

This is now at parity with our other SDKs (TS, React, .NET, Unity, etc.)

Github Release | Fab Marketplace
2.1.1 will be available on Fab around 6/14/2025

We’re thrilled to announce a powerful new addition to our RPC toolkit: native WebSocket support for Plume Mainnet (chain ID 98866) and Testnet (chain ID 98867). Now you can subscribe to live block events and react instantly as new blocks are produced—no polling required

• WebSocket Endpoints
  • Mainnet:
    wss://98866.rpc.thirdweb.com/ws/<client_id>
  • Testnet
    wss://98867.rpc.thirdweb.com/ws/<client_id>
    
• Real-Time Block Events
  Subscribe once and receive a continuous stream of block headers and payloads as they’re finalized on-chain.

1. Instant Data
   No more waiting for HTTP responses—get block notifications the moment they happen.
2. Lower Latency
   Maintain a persistent socket connection instead of hammering REST endpoints.
3. Scalability
   Stream to multiple clients or services without spinning up extra request handlers.

1. Generate or retrieve your <client_id> from your Thirdweb dashboard.
2. Connect via your favorite WebSocket library:

import WebSocket from "ws";
 
const chainId = "98866"; // or "98867" for Testnet
const clientId = "<your_client_id>";
const wsUrl = `wss://${chainId}.rpc.thirdweb.com/ws/${clientId}`;
 
const ws = new WebSocket(wsUrl);
 
ws.on("open", () => {
  console.log("Connected to Plume WebSocket!");
  // Subscribe to new block events
  ws.send(
    JSON.stringify({
      id: 1,
      jsonrpc: "2.0",
      method: "eth_subscribe",
      params: ["newHeads"],
    }),
  );
});
 
ws.on("message", (data) => {
  const event = JSON.parse(data);
  console.log("New block received:", event);
});

3. Handle Events
   Every newHeads message includes block number, hash, timestamp, and parent hash—ready for indexing, alerts, or analytics.

• More Chains Coming Soon!
  We’re actively working on extending WebSocket support across additional networks. Stay tuned for announcements!

You can now create new teams from the thirdweb dashboard. This feature allows you to create multiple teams to separate team members and projects effectively.

Why use teams? Use different teams to organize separate apps or clients, each with their own assets, team members, usage analytics, and billing. Creating teams is free, and each team has its own subscriptions and team-specific limits.

Visit the My Account page or use the team selector in the top navigation, then select "Create Team".

Switch between teams: Use the team selector to move between your teams.

Transfer a team: Simply add another owner to the team, and remove the original owner.

Example: Owner A owns team A but wants to transfer it to owner B. After owner A invites owner B to the team, owner B can remove owner A.

Delete a team: No longer need a team? Delete it from the Settings > General page.

Manage who can view and update your thirdweb resources by adding team members from the Settings > Members page.

Visit the Pricing page to learn more about plans that include multiple seats.

Insight adds support for filtering NFT transfers by type.

On the v1/nfts/transfers endpoint you can specify a transfer_type query parameter and choose to filter transfer, sale, mint or burn transfers.

transfer - Any transfer without additional sale data

sale - A transfer that has additional sale data* (Seaport protocol supported)

mint - A transfer from a zero address

burn - A transfer to a zero address

* Example sale data:

"transaction_hash": "0x6bb2c31fd42a504b375c94441693effced0c1ff41b4e8d3d8396eeed9cd55bb8",
"items_sold": [
  {
    "token_address": "0x413530a7beb9ff6c44e9e6c9001c93b785420c32",
    "token_id": "1881",
    "amount": "1",
    "from_address": "0x055e4e77cbc70c59bef7f42c5603a7d77a82ca0c",
    "token_type": "erc721"
  }
],
"payment": [
  {
    "token_address": "0x0000000000000000000000000000000000000000",
    "token_id": "0",
    "amount": "6965000000000000",
    "token_type": "",
    "to_address": "0x055e4e77cbc70c59bef7f42c5603a7d77a82ca0c"
  },
  {
    "token_address": "0x0000000000000000000000000000000000000000",
    "token_id": "0",
    "amount": "35000000000000",
    "token_type": "",
    "to_address": "0x0000a26b00c1f0df003000390027140000faa719"
  }
],
"marketplace_address": "0x0000000000000068f116a894984e2db1123eb395",
"marketplace_name": "opensea"

Try it out on our playground.

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

This release introduces significant improvements to Nebula's agent capabilities, adding fiat onramping through Universal Bridge, new NFT collection tools, and aggregated transaction and events data. Improvements have been made to Nebula’s memory handling, leading to faster responses in some cases and helping us prepare for our next major release. Additionally, we fixed a major bug that caused Nebula to respond with "No response received, please try again" in long-running queries.

Nebula v0.0.17 is live now!

• Added an onramping tool for fiat-to-crypto transactions using thirdweb Universal Bridge
• Improved token swap preparation for better cross-chain support and tool-calling accuracy
• Expanded the capabilities of transaction and event aggregation

• Nebula can now retrieve on-chain NFT collection statistics
• Added NFT token retrieval for token-specific data like URI metadata
• Enhanced transaction and event aggregation for significantly improved accuracy

• Function calling has been significantly improved
• Nebula now understands more complex contract functions and executes them accurately

• Nebula now tracks deployed and referenced contracts, preserving them in session memory
• Improved agent autonomy through better tool chaining and context retention

Aggregations are an exciting addition to Nebula's capabilities, enabling complex queries such as:

User: Find the top 5 contracts on Base in the past hour by transaction count

Nebula: Here are the top 5 contracts on Base by transaction count in the past hour (from 2025-06-05 11:15:19 UTC to now):

1. 0xfe16e9fcc577cb9b19319f6c97d915d58545fd7f — Name: UnknownContract, Transactions: 18,324
2. 0x00f79a40ffa54316059614c280750756412a5fc9 — Name: UnknownContract, Transactions: 14,138
3. 0x4752ba5dbc23f44d87826276bf6fd6b1c372ad24 — Name: UniswapV2Router02, Transactions: 14,021
4. 0x1307b5f4f528519b3ad44c98cdf4e156686c6f63 — Name: UnknownContract, Transactions: 12,413
5. 0x3fc91a3afd70395cd496c647d5a6cc9d4b2b7fad — Name: UniversalRouter, Transactions: 12,167

• Updated agent framework version for improved performance
• Refined prompts for more accurate tool calling
• Improved reasoning steps and decision-making

• Better handling of connection timeouts to prevent "No response received" errors

• Improved contract deployment tools with enhanced flexibility
• Better address checksumming and output type validation
• Enhanced transaction preparation with native token support
• Fixed tools to properly handle base units and native tokens

• Fixed an issue where parts of responses were cut off
• Resolved duplicate answers in agent responses
• Improved contract function parameter validation
• Fixed multiple type-related issues across tools
• Improved parameter validation for contract deployments

This release marks a significant step forward in Nebula's capabilities, delivering more reliable tools, smarter agents, and expanded financial integrations for building full-featured blockchain applications.

You can now set up webhooks directly in your dashboard to track blockchain activity in real-time—no more polling, no more missing important events.

Webhooks allow you to:

• Get notified when specific events happen on-chain (like NFT mints, transfers, or contract calls) or any contract function you specify
• Automate downstream processes like updating your app, sending emails, or triggering workflows
• Stay in sync with blockchain state—even when there are re-orgs (yup, we handle that too)

Get started with webhooks by creating a project > Webhooks > Create Webhook

We updated our ecosystem wallet smart account options to let ecosystem owners opt in to using EIP-7702 for all their users.

Picking EIP-7702 as the smart wallet execution mode for your ecosystem has multiple benefits:

• your users will be able to use the same smart account features as EIP-4337 like gas sponsorship, batching and session keys
• Smart account address will be the same address as their EOA address.
• Execution speed will be up to 3x faster than EIP-4337 userOps.
• No code change required

Keep in mind that this standard only works on chains that have adopted the EVM pectra update. Most popular chains support it today, with more chains adopting it every week.

We recommend trying out 7702 execution for your ecosystem wallets, just enable the setting in your dashboard and connect to your ecosystem wallets to take advantage of this new smart account standard.

Happy building! 🛠️

We've improved our wallet service for in-app and ecosystem wallets with new quality of life features. Below are the highlights and detailed changes.

• Account deletion flag – allow end‑users to erase their wallet account entirely when unlinking the final auth profile.
• Improved partner attribution – new user records created via an ecosystem partner are now tagged, and filtering is supported via the API.
• Phone‑login sandboxing – deterministic phone/O​TP pair for local development and App Store / Play Store review flows.

Apple and other platforms mandates an way to delete user accounts.
You can now fulfill this requirement by setting allowAccountDeletion: true when unlinking the final profile tied to a wallet.

import { useUnlinkProfile } from "thirdweb/react";
 
const { mutate: unlinkProfile } = useUnlinkProfile();
 
const handleUnlink = () => {
  unlinkProfile({
    client,
    profileToUnlink: connectedProfiles[0],
    allowAccountDeletion: true, // Deletes the account if it's the last profile
  });
};

import { unlinkProfile } from "thirdweb/wallets/in-app";
 
await unlinkProfile({
  client,
  profileToUnlink: profiles[0],
  allowAccountDeletion: true, // Deletes the account if it's the last profile
});

• Automatic tagging – Any new wallet created through an ecosystem partner is now associated with that partner ID. (Existing users remain unchanged.)
• Filtering – Query only the users for a given partner by providing both headers:

x-ecosystem-id:          <your‑ecosystem‑id>
x-ecosystem-partner-id:  <partner‑id>

GET /v1/users now returns only the wallets originated by that partner when both headers are present.

For staging or App Store submission, you may use the dedicated test credentials:

These bypass SMS delivery so you can validate the flow end‑to‑end without external dependencies.

As always we appreciate your feedback – drop us a line or open an issue on GitHub.

© 2025 Thirdweb

v5.102.0 of the thirdweb TypeScript SDK rolls out server-side wallet orchestration and better transaction management—adding APIs to create & list server wallets, search transactions with flexible filters, batch multiple calls in one shot, and clearer error reporting.

Create a new server wallet with a custom label.

import { Engine } from "thirdweb";
 
const serverWallet = await Engine.createServerWallet({
  client,
  label: "My Server Wallet",
});
console.log(serverWallet.address);
console.log(serverWallet.smartAccountAddress);

List every server wallet that already exists.

import { Engine } from "thirdweb";
 
const serverWallets = await Engine.getServerWallets({
  client,
});
console.log(serverWallets);

Search transactions by ID, chain ID, sender, and more (supports nested AND/OR filters).

// By transaction IDs
const transactions = await Engine.searchTransactions({
  client,
  filters: [{ field: "id", values: ["1", "2", "3"] }],
});
 
// By sender and chain
const transactions = await Engine.searchTransactions({
  client,
  filters: [
    {
      filters: [
        {
          field: "from",
          values: ["0x1234567890123456789012345678901234567890"],
        },
        { field: "chainId", values: ["8453"] },
      ],
      operation: "AND",
    },
  ],
  pageSize: 100,
  page: 0,
});

Queue multiple transactions in a single batch and wait for completion.

// Prepare transactions
const tx1 = claimTo({ contract, to: firstRecipient, quantity: 1n });
const tx2 = claimTo({ contract, to: secondRecipient, quantity: 1n });
 
// Enqueue batch
const { transactionId } = await serverWallet.enqueueBatchTransaction({
  transactions: [tx1, tx2],
});
 
// Wait for the batch to finish
const { transactionHash } = await Engine.waitForTransactionHash({
  client,
  transactionId,
});
console.log(transactionHash);

Server-wallet transactions now surface clearer, more actionable error messages.

We’ve just shipped a powerful new feature to the Insight dashboard: Webhooks.

This release makes it easier than ever for developers to listen to blockchain events and transactions in real time — and trigger actions when they matter most.

Whether you’re building dashboards, automation workflows, or real-time alerts, Webhooks give you the tools to keep your system tightly synced with on-chain activity.

Webhooks let you subscribe to blockchain activity and receive notifications when specific events or transactions occur — directly to your own application.

They’re ideal for:

• Tracking contract events (e.g. transfers, mints, executions)
• Monitoring transactions
• Building alerting and analytics pipelines
• Powering downstream workflows from blockchain data

Events are delivered in batches, with at-least-once delivery and unique event IDs for easy deduplication. We recommend using a queue system if your processing is heavy.

The new Webhooks UI brings a fully integrated way to manage everything — no manual setup or API-only workflows.

• Create Webhooks
• Filter by Contract, Event Signature, or Function Selector
• Automatic ABI fetching to enable decoded data at delivery
• Test Mode to verify endpoints before going live
• List & Delete existing webhooks with full error and loading states

We just turbo-charged the aggregate parameter across the whole Playground:

• Aggregate Parameter Input v2
  • Brand-new component for aggregate parameters input.
  • Pop-over UI with search, check-boxes, and live badges so you can combine multiple presets in one click.
  • Works anywhere aggregate is supported – Blocks, Transactions, Events, Wallet Transactions.
• Preset library out of the box
  • ✨ Transaction Count, Total Value, Avg Value, Total Fees … plus contextual sets for each endpoint.
  • Custom SQL-like snippets still welcome—type them right alongside the presets.
• Smarter parameter section
  • Descriptions & examples now auto-swap based on the parameter name for clearer guidance.
  • Place-holders use the parameter’s real description if one exists.

Full walkthroughs, FAQs, and copy-paste code samples added to the relevant docs sections, such as Get Started, Use Cases, Blueprints, etc.

• Replaced the plain old input field with a polished multifunctional pop-over.
• State sync so manual edits and preset picks never collide.
• Cleaner tooltip positioning and internal refactor of ParameterSection.

Enjoy faster insights without memorising SQL! Let us know what you build.

NFT owner queries have been improved with added balance data and a new ERC20 token owners endpoint has been added to Insight API.

v1/tokens/owners has been added to return a list of token owners with their balances.

Try it out on our playground.

The two endpoints to query NFT owners (v1/nfts/owners/:contract_address and /v1/nfts/owners/:contract_address/:token_id ) now have the ability to return the balance of each owner in addition to owner addresses.

To enable it, use the query param include_balances=true when calling the endpoints. This will change the response format, so make sure it will not break your app!

The new response format will be an array of owner objects, for example:

{
    "data": [
        {
            "chain_id": 1,
            "token_address": "0x5bb3d01f32687f92f8636799687e55cba0627704",
            "owner_address": "0x0000000000000000000000000000000000000001",
            "token_id": "88",
            "balance": "1"
        },
        ...
    ]
}

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

This release introduces new integrations to expand both thirdweb AI and thirdweb MCP capabilities with Google's Agent Development Kit (ADK), and adds support for thirdweb Engine Cloud, allowing for autonomous on-chain interactions.

• Added Google Agent Development Kit (ADK) adapter support
• Enables direct integration with thirdweb tools for use with ADK agents
• Supports all thirdweb AI tools and thirdweb MCP

from google.adk.agents import Agent
from thirdweb_ai import Insight
from thirdweb_ai.adapters.google_adk import get_google_adk_tools
 
# Initialize Insight with secret key
insight = Insight(secret_key=secret_key, chain_id=1)
insight_tools = insight.get_tools()
 
# Convert to Google ADK tools
adk_tools = get_google_adk_tools(insight_tools)
 
# Create the agent with the tools
agent = Agent(
    model="gemini-2.0-flash",
    name="thirdweb_insight_agent",
    tools=adk_tools,
)

• Introduced dedicated Engine Cloud service integration
• Supported in all AI integrations, and the thirdweb MCP server
• Allows for autonomous on-chain executions like creating engine cloud wallets, and transacting on-chain

from thirdweb_ai import EngineCloud
 
# Initialize EngineCloud with credentials
engine_cloud = EngineCloud(
    secret_key="your_secret_key",
    vault_access_token="your_vault_token"
)
 
# Get cloud-based engine tools for AI integrations
tools = engine_cloud.get_tools()

To run engine cloud within thirdweb MCP you must provide a vault_access_token:

THIRDWEB_SECRET_KEY=... \
    uvx thirdweb-mcp --vault-access-token=...

This gives you access to Engine Cloud tools like creating wallets, or sending transactions.

thirdweb-ai and thirdweb-mcp v0.1.24 are both live now on PyPi!

Insight API adds a new token balances endpoint that also supports native token balances. It will replace the current ERC-20 balance endpoint which is being deprecated.

This endpoint is being deprecated in favor of v1/tokens to be better aligned with the NFT endpoints and make it easier to expand the capabilities of the new endpoint in the future.

v1/tokens has full parity with the ERC-20 balances endpoint but also adds support for native token balances and also returns the owner_address in the response.

Native balances are always returned at the beginning of the response. If they are not needed, they can be removed from the response by setting the include_native query param to false.

The native token address is 0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

The new endpoint is available in our playground.

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

We’ve improved the Insight API to support unified access to all token transfers — both NFTs (ERC721/ERC1155) and fungible tokens (ERC20) — through a single, consistent endpoint 🚀

• You can now fetch NFT and ERC20 transfers in one call.
• Transfer responses include metadata for both NFTs and ERC20 tokens.
• Added support for a new "burn" transfer type when tokens are sent to the zero address.
• Introduced filtering by token type (erc20, erc721, erc1155) via query parameters.

This change simplifies integration and improves performance when querying mixed token transfers — especially useful for clients who need a single endpoint to track all token activity.

The thirdweb TypeScript SDK was just updated with significant updates to the universal bridge component and APIs.

pnpm add thirdweb@5.100.0

When you do a transaction in a react environment (useSendTransaction or TransactionButton), and the user does not have enough funds in their wallet, we now by default always show them a flow to top up their wallet:

• Pay with another wallet
• Pay with another token
• Pay with fiat
• Deposit funds (for testnets and unsupported routes) with balance auto refresh

The PayEmbed component has been improved across the board to load routes, quotes and status faster than ever before. No code changes required.

import { Bridge, NATIVE_TOKEN_ADDRESS, toWei } from "thirdweb";
 
const quote = await Bridge.Transfer.prepare({
  chainId: 1,
  tokenAddress: NATIVE_TOKEN_ADDRESS,
  amount: toWei("0.01"),
  sender: "0xSender",
  receiver: "0xReceiver",
  client,
});
 
// quote.transactions → execute sequentially with sendAndConfirmTransaction

import { Bridge } from "thirdweb";
import { ethereum } from "thirdweb/chains";
import { NATIVE_TOKEN_ADDRESS, toWei } from "thirdweb/utils";
 
const session = await Bridge.Onramp.prepare({
  client,
  onramp: "stripe",
  chainId: ethereum.id,
  tokenAddress: NATIVE_TOKEN_ADDRESS,
  amount: toWei("10"),
  receiver: "0xReceiver",
});
 
window.location.href = session.link;
 
// Later
const status = await Bridge.Onramp.status({ id: session.id, client });

Upgrade for smoother cross‑chain and on‑ramp experiences!

Nebula 0.0.16 brings significant improvements to contract interactions, introduces a new token burn capability, and enhances cross-chain support.

• New Token Burn Tool: Permanently remove tokens from circulation with smart fallbacks. Supports both ERC20 tokens and native currencies, with automatic detection of burn methods.
• Contract Type Detection: Automatically identify contract types (ERC20, ERC721, ERC1155, marketplace, proxy, multisig, etc.) to provide more context-aware interactions.
• Enhanced Contract Metadata: Contract analysis now includes token-specific data (decimals, total supply), NFT-specific features (tokenURI support), and better handling of EOA addresses.
• Improved Universal Bridge: Cross-chain transfers now work seamlessly across all supported chains with improved validation and confirmation.
• Tool Consolidation: Combined similar tools (wallet address/token balance, transaction lookups) for more streamlined interactions and consistent responses.
• Token-Specific Wallet Queries: Added support for querying specific token balances in a wallet, enabling more focused blockchain data retrieval.
• Human-Readable Values: All token amounts now use human-readable formats with proper decimal handling across all contract tools.

• New Block Tool: New unified tool replaces separate block retrieval methods with support for block numbers, hashes, and special tags ('latest', 'earliest', 'pending').
• Arbitrary Contract Output: Enhanced with additional metadata to support Nebula's response.
• Link Formatting: Better formatting of transaction hashes and wallet addresses in responses for improved readability.

• Fixed transaction data formatting in contract preparation tools
• Corrected decimals handling in token operations
• Improved URI formatting for NFT collections
• Enhanced wallet address handling in transaction tools