{"openapi":"3.1.0","info":{"title":"Carrier Safety API","version":"1.0.0","description":"Peer-ranked motor-carrier safety profiles computed from FMCSA public data (Company Census, Vehicle Inspection File, Violations, Crash File; window 2025-10 to 2026-10). Percentiles are computed from the public snapshot using the SMS BASIC frame; they are not FMCSA official SMS scores.","x-data-vintage":"2026-10-09T08:18:12Z","x-carriers":104239},"servers":[{"url":"https://carriersafety.nshipyard.com"}],"paths":{"/api/search":{"get":{"summary":"Search carriers by name or USDOT number","parameters":[{"name":"q","in":"query","required":true,"schema":{"type":"string"}}],"responses":{"200":{"description":"Up to 20 matches"}}}},"/api/carrier/{usdot}":{"get":{"summary":"Full peer-ranked safety profile (requires sign-in)","parameters":[{"name":"usdot","in":"path","required":true,"schema":{"type":"integer"}}],"responses":{"200":{"description":"Carrier profile"},"401":{"description":"Sign-in required"},"402":{"description":"Free lookup quota exceeded"}}}},"/api/mcp":{"get":{"summary":"List agent tools"},"post":{"summary":"Call an agent tool (search_carrier, get_carrier_profile)"}},"/api/openapi":{"get":{"summary":"This document"}}}}