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

First reported June 23, 2026 by The Defiant · covered by 2 sources

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 spec introduces the first crosschain MPP payment profile via Circle Gateway

Jun 23, 2026 · byThe Defiant

Circle publishes USDC specification for Machine Payments Protocol

Circle's MPP could revolutionize autonomous transactions, enhancing AI efficiency and potentially reshaping digital payment ecosystems. The post Circle publishes USDC specification for Machine Payments Protocol appeared first on Crypto Briefing .

Jun 23, 2026 · byCryptoBriefing