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

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

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

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.

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!

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

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

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

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.

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

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.

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

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! 🛠️

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

Revamped Project view simplifying access to core thirdweb features.

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

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

Expanding our repertoire of authentication providers across all interfaces.

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

EIP-4337 Smart Wallets and EIP-7702 Relayer Enabled on Circle's Arc Testnet.

Expanding support for EIP-7702 based transaction relaying.

Expanding support for EIP-7702 based transaction relaying.

Various improvements to SIWE and authentication flows.

Unlocking improved Account Abstraction on Celo Mainnet

You can now sponsor gas for users on Hyperliquid Testnet & Mainnet