COINBASE INTRODUCES X402 V2

Summary from the TLDR Crypto newsletter

Coinbase has released x402 V2, an updated stablecoin-based AI agent payments protocol that features wallet-based identity, eliminating per-call repayment, automatic API discovery, dynamic payment recipients, and multi-chain/fiat support via Chain Agnostic Improvement Proposals. The modular SDK enables custom networks and schemes, moving the protocol from "what does it do" to "which services plug in next" as developers combine payments with secure wallet access. The update expands on the original open-source x402 protocol and x402 Bazaar discovery layer released earlier this year, positioning the system as future-proof infrastructure for unified payment models between agents and humans.