CAIN-42 CAIN StudioAPI reference
CAIN Guard API
10 operations under /fabric/guard
Last reviewed 2026-10-02
Base URL https://cainstudio.online. Every call carries your key in the X-API-Key header; a free key comes from sign-up, and agent keys from the console. A key only ever sees its own tenant. A call the platform cannot decide is refused, never allowed: timeouts, outages and unknown verdicts do not become ALLOW.
| Method | Path | What it does |
|---|---|---|
| GET | /fabric/guard/a2a/drift/{agent_id} | Check Drift |
| POST | /fabric/guard/a2a/nonce/check | Check Nonce |
| POST | /fabric/guard/a2a/observe | Observe Capability |
| POST | /fabric/guard/a2a/register | Register A2A Card |
| POST | /fabric/guard/a2a/revoke/{agent_id} | Revoke Card |
| POST | /fabric/guard/a2a/verify | Verify A2A Card |
| POST | /fabric/guard/action/verify | Verify Action Plan |
| POST | /fabric/guard/hallucination/check | Check Hallucination |
| GET | /fabric/guard/health | Guard Health |
| GET | /fabric/guard/stats | Get Stats |
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