Meta and Sierra Launch Agent Protocol

Meta and Sierra announced the Personal Agent Protocol on October 6, an open standard designed to define how personal AI agents interact with businesses.

The initiative involves industry partners including Genesys, Instinct, Rocket, Shopify, Stripe, and Walmart. The protocol aims to address the lack of unified authentication and visibility when AI agents access corporate websites or APIs, allowing businesses to verify agent identity and control permissions.

Sierra co-founder Bret Taylor described the current state as "chaos" without such a standard. Built on OAuth, the protocol lets users grant read-only or write access to their agents, facilitating tasks via websites, APIs, or company-owned agents.

The protocol is currently in preview, with Sierra planning to release the v0.1 specification and reference implementation later in October. OpenAI and Anthropic have not joined yet, though Taylor expressed hope for future collaboration.