Home / 📡 Communication / Agent-to-Agent Protocol (A2A)
Core Stack 📡 Communication active v1.0.0

Agent-to-Agent Protocol (A2A)

by Google ★ 23,866
An open protocol enabling communication and interoperability between opaque agentic applications built on diverse frameworks. A2A provides a common language for agents to discover each other's capabilities, negotiate interaction modalities, and securely collaborate on long-running tasks without exposing internal state, memory, or tools. Uses JSON-RPC 2.0 over HTTP(S).

📄 Specification

Category 📡 Communication
Version1.0.0
MaintainerGoogle
Status active
Sourcegithub.com/a2aproject/A2A
GitHub Stars★ 23,866

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Discovered May 20, 2026
Last updated May 20, 2026