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Google Agent2Agent (A2A)
Agent Coordination Layers✦ L'AURA Certified
Open protocol for inter-agent task delegation across vendor boundaries.
75MoatRank™
About
An HTTP/JSON-RPC protocol for agents to delegate tasks to other agents, complementing MCP's agent-to-tool access. Released by Google in 2025 and transferred to the Linux Foundation; passed 150+ supporting organizations by April 2026.
MoatRank™ Breakdown
Total Score75 / 100
Structural Integrity16/20
Behavioral Coherence15/20
Governance Maturity16/20
Adoption Legitimacy13/20
Composability Index15/20
Observation Timeline
Apr 1, 2026
150+ supporting organizations; Google ADK native support
Linux Foundation governed; Google ADK 1.0 shipped with native A2A; production deployments across multiple industries.
Certification
✦ L'AURA Certified
Issued: Jun 25, 2026
Legitimate, neutrally-governed protocol; younger and more Google-weighted than MCP.