Meta, Sierra launch Personal Agent Protocol for AI commerce

Meta, Walmart, Stripe, and Sierra Technologies are collaborating on the Personal Agent Protocol, a new open standard designed to govern how autonomous AI agents interact with businesses online. Co-created by Sierra's Bret Taylor, the standard addresses authentication, consumer empowerment, and transparency into agent activity. The effort responds to a call from six major banks, including Bank of America and Capital One, for clearer AI agent standards. Meta's own agent Muse, already facing privacy and security scrutiny, could generate $27 billion in revenue by decade's end, according to Citigroup.