{"uid":"cap_c006gnJAW2VzaZ_xxTZ8y","slug":"fmcsa-carrier-search-api-03ef82b3","name":"FMCSA Carrier Search API","description":"Which FMCSA-registered carriers match a name, state, entity type, fleet-size range, operating status, or authority status? Trigram name search over 4.4M+ census records — find a carrier's USDOT number, shortlist carriers in a lane state, or screen brokers vs carriers. Up to 100 rows per call, largest fleets first; total_matched caps at 1000 (total_matched_capped=true means narrow your filters).","url":"https://api.govparse.io/v1/carriers/search","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":[],"properties":{"name":{"type":"string","examples":["knight transportation"],"description":"Carrier legal or DBA name fragment, case-insensitive (trigram match). Example: 'knight transportation'."},"sort":{"type":"string","examples":["power_units:desc"],"description":"field:direction — power_units | total_drivers | usdot. Example: 'power_units:desc'."},"limit":{"type":"integer","examples":[25],"description":"Max rows to return (default 25, cap 100)."},"state":{"type":"string","examples":["TX"],"description":"Physical-address state code(s), CSV. Example: 'TX,OK'."},"offset":{"type":"integer","examples":[0],"description":"Rows to skip, for paging."},"entity_type":{"type":"string","examples":["carrier"],"description":"carrier | broker | forwarder (CSV for multiple)."},"power_units_max":{"type":"integer","examples":[500],"description":"Maximum fleet size in power units."},"power_units_min":{"type":"integer","examples":[50],"description":"Minimum fleet size in power units."},"authority_status":{"type":"string","examples":["Active"],"description":"Only carriers with an operating-authority record in this status: Active | Pending | Inactive | Withdrawn."},"operating_status":{"type":"string","examples":["A"],"description":"A (active) | I (inactive) | P (pending), CSV for multiple."}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$1.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_n48elSEw-31R2nWtGBuUG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search 4.4M+ FMCSA-registered carriers and brokers by name, state, entity type, fleet size, operating status, or authority status to retrieve USDOT numbers and carrier details.","exampleAgentPrompt":"Find me FMCSA-registered active carriers based in Texas with fleets between 50 and 500 power units — I need the top 25 largest ones with their USDOT numbers.","exampleUseCases":[{"title":"USDOT number lookup by carrier name","prompt":"I need the USDOT number for Knight Transportation — can you search FMCSA records and pull up their registration details?"},{"title":"Lane-state carrier shortlist for RFP","prompt":"Give me the top 25 largest active trucking carriers physically located in Ohio or Indiana, sorted by fleet size, so I can reach out about a new lane."},{"title":"Broker vs carrier screening","prompt":"I'm vetting a company called 'FastFreight Logistics LLC' — can you check if they're registered with FMCSA as a carrier or broker, and what their current authority status is?"}],"resultDescription":"Returns up to 100 rows (default 25) of matching carrier records sorted by fleet size descending, each containing USDOT number, legal/DBA name, entity type, operating status, authority status, physical state, power units, and total drivers. Also returns total_matched count (capped at 1000; total_matched_capped=true signals filters need narrowing) and pagination metadata.","failureModes":["Name fragment too broad returns 1000+ matches with total_matched_capped=true — user must add state, entity type, or fleet-size filters to narrow results","No results returned when name spelling differs significantly from FMCSA records — trigram search helps but extreme misspellings may yield zero matches","Invalid state code or enum value for operating_status/authority_status causes a validation error","Offset beyond available results returns empty rows — check total_matched before paginating","Rate limiting or payment failure (x402) if USDC balance is insufficient at $0.02 per call"],"whenToPreferThis":"Choose this endpoint when you need to search or shortlist FMCSA-registered entities (carriers, brokers, forwarders) by name, geography, fleet size, or authority status across the full 4.4M+ census. It is the right choice for USDOT number lookups by name, carrier vetting before freight tender, lane-state carrier sourcing, and broker/carrier type screening. Prefer sibling endpoints for fetching full carrier details by USDOT (carrier browse/detail endpoint) or for aggregate statistics (FMCSA stats endpoint).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:40:18.643Z","isFirstParty":false}