Coinbase Expands Reach of Stablecoin-Based AI Agent Payments Tool

Coinbase has launched the latest version of its stablecoin-based payments protocol for AI agents, named x402 V2, designed to make the autonomous payments system easier to extend and integrate with existing services. This updated protocol features a clean, modular design that allows developers to combine payments, enable secure wallet access, and add new functionalities. Key improvements in x402 V2 include support for wallet-based identity (eliminating the need to repay on every call), automatic API discovery, dynamic payment recipients, and support for more chains and fiat standards via CAIP. The goal is to make the x402 protocol cleaner, more future-proof, and enable unified payment models for both agents and humans.

(Source：CoinDesk)