a2aproject/A2A

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

a2aa2a-mcpa2a-protocola2a-serveragentsgenerative-ailinux-foundation

Agent quality

68%

Agent quality score.

Reachable

Reputation70%

Cross-source presence, stars, and recency.

has 23806 stars; actively maintained; credible author

Usability80%

Docs, license, auth, and clear capabilities.

Usability based on documentation, license, auth/pricing clarity, structured capabilities, and public repository presence.

Functionality43%

Predicted functionality, speed, and reliability.

Scored on specificity, consistency, reliability, speed, and scope clarity.