thirdweb blog

Partner-Level Branding for Ecosystem Wallets

Ecosystem customers can now add custom partner logos to email OTP authentication flows, giving each partner in your ecosystem their own branded experience. What's New When users authenticate via email OTP through your ecosystem wallet, they can now see your partner's logo instead of your ecosystem&

Support for x402 protocol v2

Support for x402 protocol v2

The thirdweb SDK now supports x402 protocol version 2, introducing header-based payment flows for improved efficiency and flexibility in blockchain payment integrations. Notable Changes * New Payment Headers: v2 uses PAYMENT-SIGNATURE for requests and PAYMENT-RESPONSE for responses, replacing the v1 headers (X-PAYMENT and X-PAYMENT-RESPONSE) * Streamlined Responses: Payment requirements are now encoded

Solana Token Deployment API

Solana Token Deployment API

New Endpoint — Deploy SPL tokens and Token-2022 tokens directly via API

Introducing: Bridge widget iframe

Introducing: Bridge widget iframe

The Bridge widget iframe makes it easy to embed cross-chain swaps and fiat onramp UI into your app. Just add an iframe to your HTML and get a fully customizable widget - no client id required! Features * Cross-chain token swaps across 85+ blockchains * Fiat onramp support to buy tokens with

Introducing Dedicated Relayers: High-Performance Transaction Infrastructure for Scale

Introducing Dedicated Relayers: High-Performance Transaction Infrastructure for Scale

As your on-chain application grows, relying on shared infrastructure can become a bottleneck. High-volume applications require guaranteed throughput, lower latency, and the ability to handle traffic spikes without competing for resources.

Smart Contract Incident Report: Legacy Bridge Vulnerability

Smart Contract Incident Report: Legacy Bridge Vulnerability

Summary On December 10, 2025, we were notified of unauthorized activity on a legacy version of the Bridge contract. This activity resulted from the legacy contract not being properly decommissioned during our April 2025 vulnerability response. While the primary Bridge contracts were secured in April, the legacy contract remained active

Sign once, settle many times with x402

Sign once, settle many times with x402

We shipped a change in our x402 facilitator that allows settling multiple payments with the same payment authorization, up to a maximum amount. This opens up a lot more x402 use cases like AI chat sessions, automations, scheduled actions and more!

Server wallet token swapping in dashboard

Server wallet token swapping in dashboard

You can now swap tokens held by your server wallets directly from the dashboard. Useful to convert the fees and payments you receive to the token / chain of your choice. Simply head to your project dashboard, you'll find a new "Swap" button in your project wallet

Bridge improvements

Bridge improvements

We recently shipped 3 important improvements to the Bridge API and widgets. 1 - Batched transactions with ERC-5792 We reduced the number of confirmations required by half for erc20 token swaps in the Bridge widgets. Under the hood we leverage ERC-5792 enabled wallets to atomically perform approvals and swaps in

Bridge and swap over 14,000+ tokens on over 95+ EVM chains

Bridge and swap over 14,000+ tokens on over 95+ EVM chains

The Fastest and Easiest Way To Move Tokens Across Any EVM Chain If you’ve ever tried to move tokens between blockchains, you know the drill: tabs on tabs on tabs… swapping here, bridging there, and then you finally get to play with the app you logged onto 15 minutes

Retiring Legacy Pricing Plans on January 1st, 2026

On January 1st, 2026, we will be retiring our legacy pricing plans. To ensure consistency across our platform and provide access to our latest infrastructure, all customers currently on legacy tiers will be automatically migrated to our current, simplified pricing plans. How do I know if I am on a

View and Withdraw Server Wallet Balances for any token

View and Withdraw Server Wallet Balances for any token

We just improved the Project Server Wallet management from the dashboard to easily view and withdraw funds for any token on any chain. Every thirdweb project comes with a non custodial server wallet by default, you can use this for receiving fees, facilitating x402 transactions or any backend transaction. With

Dynamic pricing for x402 resources

Dynamic pricing for x402 resources

We've updated our x402 client/server stack to enable dynamic payments, perfect for AI APIs that need to charge on a per-token basis.

Granular Session Keys via API: Secure Server-Side Automation for User Wallets

Granular Session Keys via API: Secure Server-Side Automation for User Wallets

Client and Server side end-to-end advanced flows using EIP7702-powered granular Session Key execution via API. No, it's not just buzzwords.

React Hook for x402 Payments

React Hook for x402 Payments

We just shipped the new useFetchWithPayment() React hook to integrate x402 payment flows into your React applications with built-in UI for wallet connection, funding, and payment error handling.

Fee sharing for x402 transactions

Fee sharing for x402 transactions

We just introduced the ability to set your own developer fees for all x402 transactions. This unlocks new monetization streams for platforms building with of x402 payments. If you're building an platform that lets your users pay other users using x402, you can set your own fee to

Introducing thirdweb 4.0: built for the next generation of internet products

Introducing thirdweb 4.0: built for the next generation of internet products

The internet has been shifting right below our feet. * A rideshare driver or delivery person gets paid instantly through a platform like Uber or DoorDash * A TikTok creator sells merch, subscriptions, or receives tips turning attention into income * AI recently joined the digital economy autonomously paying for APIs, compute, data,

x402 analytics dashboard

x402 analytics dashboard

We just added comprehensive analytics for your x402 enabled APIs, so you can see payments and volume by resource, buyer and chain. Navigate to the new x402 section of your project to see it in action, or learn how to get started monetizing your applications with x402. Happy building! 🛠️

Solana x402 Support is Live

Solana x402 Support is Live

Bring Solana paywalls online with x402: server wallets, /accepts, /verify, and /settle are now chain-agnostic.

Project View Update - Wallets

Project View Update - Wallets

Revamped Project view simplifying access to core thirdweb features.

Stylus Modular Contracts: Mintable and Transferable Modules

Stylus Modular Contracts: Mintable and Transferable Modules

We have added support for creating and deploying modular contracts with Stylus. Users can now install rust based modules into the original solidity based modular contracts as described in the main design doc. This plug-n-play model also allows users to write their own custom minting logic in rust, taking advantage

Solana Token Swaps via API

Solana Token Swaps via API

We're excited to announce native Solana token swap support! Swap any SPL token on Solana Mainnet, EVM-friendly I/O.

Epic Games Authentication Now Available!

Epic Games Authentication Now Available!

Expanding our repertoire of authentication providers across all interfaces.

Solana Sign & Broadcast Transaction APIs

Solana Sign & Broadcast Transaction APIs

We've added two new endpoints to give you fine-grained control over Solana transaction signing and broadcasting.

Solana Token Balance API and Dashboard Integration

Solana Token Balance API and Dashboard Integration

Solana Token Balance API and Dashboard Integration