Announcing the Agent2Agent Protocol (A2A)- Google Developers Blog
Apr 9, 2025Rao Surapaneni, Miku Jha, Michael Vakoc, Todd Segal
Summary
Introduces the Agent2Agent (A2A) protocol, an open standard for AI agent interoperability. A2A enables agents to communicate, discover capabilities via 'Agent Cards', manage tasks with defined lifecycles, collaborate through messages, and negotiate user experience elements. It is built on HTTP, SSE, and JSON-RPC, supports long-running tasks, and is modality-agnostic. The protocol aims to facilitate secure, scalable multi-agent systems across enterprise platforms.
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