Circle Publishes Official USDC Spec for Machine Payments Protocol, Enabling Crosschain Agent-to-Agent Commerce

Circle published a formal USDC method specification for the Machine Payments Protocol on Monday, standardizing how AI agents and automated services settle payments in USDC across EVM-compatible blockchains and Solana. The specification, posted at paymentauth.org/draft-usdc-charge-00.html, outlines... Read the full story at The Defiant