A2A production readiness · live evidence

Test the contract.
Then test the agent.

A technical snapshot for an existing A2A runtime: public discovery, AgentCard validity, a real negotiated message call, identity, signatures, security, and — when Agenstry already monitors it — reliability history.

Check only — never silently indexed No signup Public HTTPS endpoints only
01 · DISCOVER
Public contract

Canonical and observed AgentCard locations.

02 · PARSE
Protocol shape

A2A schema, v1 interfaces, skills, and security.

03 · CALL
Live runtime

Negotiated JSON-RPC message/send response.

04 · TRUST
Production evidence

JWS, provider identity, latency, and history.

A readiness check, not a readiness theatre.

The snapshot only scores controls the scan can actually observe. Unsigned cards and absent historical uptime remain visible, but “not measured” is not silently treated as failure. Repeated monitoring adds the temporal layer: availability, drift, stable latency, and identity verification. Read the public methodology →