criba — classify MCP / A2A / agent traffic GET /v1/bots catalog of known agent-ecosystem bots (version 2026-11-08) GET /v1/identify?ua=..&client=.. who a User-Agent and/or MCP clientInfo.name claims to be POST /v1/classify body {"events":[{protocol, httpMethod, path, status, rpcMethod, rpcError, tool, toolKnown, argsEmpty, hasText, canaryHit, userAgent, clientName}, ...]} (one visitor's requests) -> {declared, observed, signals, reasons, mismatch} Catalog licence: CC BY-NC 4.0 (non-commercial use with attribution). Commercial use requires a separate licence: contact@cribalo.com Nothing you send is stored. Limits: 500 events, 64 KiB per request.