{"uid":"cap_P9jf7-4BtAMsnmWu-AGEi","slug":"fmcsa-carrier-search-91754388","name":"FMCSA Carrier Search","description":"Use this when you don't have a USDOT number yet and need to filter carriers by state, safety tier, authority status, or cargo type — for example, every carrier with an unsatisfactory rating in a given state. Capped at 100 rows per call, Active carriers only by default. Billed only when at least one carrier matches; a zero-row result is free.","url":"https://fmcsa-mcp-843680657471.us-central1.run.app/x402/search_carriers?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","description":"Maximum rows to return; the response is capped at 100 regardless. Defaults to 20."},"state":{"type":["string","null"],"description":"Two-letter US state code (e.g. 'TX')."},"cargo_type":{"type":["string","null"],"description":"Matches carriers whose cargo_types array contains this value (e.g. 'General Freight')."},"safety_tier":{"type":["integer","null"],"description":"This project's own alert-count tier: 1 means inspected with zero BASIC alerts, higher means more alerted BASICs."},"authority_status":{"type":["string","null"],"description":"e.g. 'Active', 'Inactive', 'Pending'."},"include_inactive":{"type":"boolean","description":"Include Inactive/Pending carriers alongside Active. Defaults to false."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NPaqcCuDQV9eq9p58TOA6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches FMCSA carrier records by state, safety tier, authority status, or cargo type when you don't have a USDOT number","exampleAgentPrompt":"Find me up to 50 active carriers in Texas that haul General Freight and have a safety tier of 1 — I want only the cleanest safety records.","exampleUseCases":[{"title":"Flagging unsafe carriers in a state","prompt":"Pull up to 100 carriers in Ohio that have an unsatisfactory safety tier — include only active ones — so I can flag them for review."},{"title":"Vetting freight partners by cargo type","prompt":"Search for active carriers in California that handle Household Goods freight, give me up to 30 results so I can evaluate potential partners."},{"title":"Auditing pending-authority carriers","prompt":"Find carriers in Florida with a Pending authority status — include inactive ones too — I want to see who's waiting on approval, up to 50 results."}],"resultDescription":"Returns up to 100 carrier records (default 20) matching the specified filters. Each record includes the carrier's USDOT number, name, authority status, safety tier, cargo types, and state. A zero-result response is free; billing only occurs when at least one carrier is returned.","failureModes":["No matching carriers found (zero rows returned, no charge)","Invalid state code returns validation error","Unrecognized cargo_type string returns empty results","limit exceeds 100 is silently capped at 100","Missing or malformed request body returns HTTP 400"],"whenToPreferThis":"Use this endpoint when you do not have a USDOT number and need to discover carriers by filtering on geographic (state), regulatory (authority status), safety (tier), or operational (cargo type) criteria. Prefer over lookup_carrier when you are prospecting or auditing a set of carriers rather than retrieving a specific one. Prefer over check_carrier_identity when you are not investigating a suspicious carrier but rather doing broad discovery.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-14T06:37:36.367Z","isFirstParty":false,"canonicalSlug":"fmcsa-carrier-search-91754388"}