According to the official announcement from the Coinbase Developer Platform (@CoinbaseDev), the x402 protocol has recently launched three key updates: First, it now supports payments in all ERC-20 tokens; developers can accept on-chain payments in USDC, EURC, and any ERC-20 token using EIP-3009 and Permit2. Second, the Sign-in-with-X (SIWX) feature is now live, enabling cross-chain login for EVM and Solana wallets—buyers can access previously purchased content with a wallet signature without repeating payments, built on standards such as CAIP-122 and EIP-4361. Third, the x402 MCP Toolkit has been introduced, empowering developers with one-click monetization of MCP tools and seamless integration into AI workflows.
Coinbase x402 Protocol Launches Updates Supporting All ERC-20 Tokens
TechFlowShare
Summary
The Coinbase Developer Platform has announced a protocol update to the x402 protocol, introducing on-chain news and key enhancements. The first change enables on-chain payments for all ERC-20 tokens via EIP-3009 and Permit2, including USDC and EURC. The second update introduces Sign-in-with-X (SIWX), supporting cross-chain login for EVM and Solana wallets. The x402 MCP toolkit is now live, providing developers with monetization tools and AI workflow integration.
Source:Show original
Disclaimer: The information on this page may have been obtained from third parties and does not necessarily reflect the views or opinions of KuCoin. This content is provided for general informational purposes only, without any representation or warranty of any kind, nor shall it be construed as financial or investment advice. KuCoin shall not be liable for any errors or omissions, or for any outcomes resulting from the use of this information.
Investments in digital assets can be risky. Please carefully evaluate the risks of a product and your risk tolerance based on your own financial circumstances. For more information, please refer to our Terms of Use and Risk Disclosure.