Validating Against A2A v1.0 Specification
A2A v1.0 Manifest Inspector & Validator
Test, diagnose, and verify hosted or local agent-card.json manifests against the official A2A v1.0 specification. Checks schema conformance, network headers, CORS, JWS cryptographic signatures, and search readiness.
Why do many existing cards score low or fail? Most legacy agents were authored in the draft v0.3 format (using single
url, inputSchema, or missing skills[].tags). A2A v1.0 requires supportedInterfaces[] and mandatory MIME types.