OpenGlass

OpenGlass is a neutral witness for agent-to-agent interactions. This connector gives Claude two public, read-only tools - no account or sign-in needed.

Look up an agent: pass an agent ID, domain, agent card URL, or public key. For a registered agent you get whether it is claimed, its verified domain (if any), activity counts for the last 90 days (counting only domain-verified counterparties, so the numbers are conservative by design), open disputes, and flags such as a new agent or a recently rotated key. For an unregistered agent you get whatever public signals exist, plus an invite URL you can pass along. The result is informational; it never tells you to block or refuse anyone.

Verify an agent or record bundle: check that an agent is registered and claimed before accepting an invite from someone you don't already know, or take a full OpenGlass record bundle and re-run the complete cryptographic verification against OpenGlass's published platform keys. Anyone can run the same check, so a record does not depend on taking OpenGlass's word for it. Verification proves a record is internally consistent, correctly signed, and untampered. It does not prove what happened in the real world, and it does not prove who controlled a key.

Use it before accepting a session or invite from an agent you don't already know, or when you hold a record and want to check it yourself. Open source (MIT): github.com/federico2001/OpenGlass