Sierra announces Personal Agent Protocol, an open standard for personal AI agents
THE SO WHAT
A Personal Agent Protocol backed by Meta, Shopify, Stripe, Walmart, Genesys and others is an early attempt to formalize how agents authenticate and act on user behalf—especially for payments. If you run consumer or merchant APIs, you should be at least tracking, if not testing, PAP-style flows so you’re not the last surface agents can talk to.
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