--- title: "FMCSA API — Carrier Lookup, Safety & Authority Data" description: "Access 2.3M+ motor-carrier records via REST API: real-time DOT/MC lookups, safety scores, authority status, fleet data, and tech signals. Sub-100ms responses." lang: en json-ld: | [ { "@context": "https://schema.org", "@graph": [ { "@type": "SoftwareApplication", "name": "AlphaLoops FMCSA API", "applicationCategory": "DeveloperApplication", "operatingSystem": "Web", "description": "REST API providing access to 2.3M+ motor carrier records with 200+ data fields including FMCSA safety data, operating authority, fleet intelligence, and proprietary technology stack detection.", "url": "https://runalphaloops.com/fmcsa-api", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD", "url": "https://runalphaloops.com/pricing" }, "provider": { "@type": "Organization", "name": "AlphaLoops", "url": "https://runalphaloops.com" }, "featureList": [ "Carrier Lookup by DOT Number", "Carrier Lookup by MC Number", "Carrier Search by Name", "BASIC Safety Scores", "Operating Authority Status", "Fleet Intelligence", "Technology Stack Detection", "Contact Enrichment", "Bulk Data Download", "CRM Integration" ] }, { "@type": "APIReference", "name": "AlphaLoops FMCSA API Reference", "description": "REST API reference for 2.3M+ motor carrier records. Endpoints for carrier lookup, search, safety, authority, fleet, inspections, crashes, contacts, and technology detection.", "url": "https://runalphaloops.com/fmcsa-api/docs", "programmingModel": "REST", "targetPlatform": "Web", "assemblyVersion": "v1", "about": { "@type": "SoftwareApplication", "name": "AlphaLoops FMCSA API", "url": "https://runalphaloops.com/fmcsa-api" }, "publisher": { "@type": "Organization", "name": "AlphaLoops", "url": "https://runalphaloops.com" } }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is the FMCSA API?", "acceptedAnswer": { "@type": "Answer", "text": "The FMCSA API provides programmatic access to data from the Federal Motor Carrier Safety Administration, the U.S. agency responsible for regulating commercial motor vehicles. It includes carrier identity, operating authority status, safety ratings, inspection records, and crash data for over 2.3 million registered motor carriers. AlphaLoops's FMCSA API extends this with proprietary data including technology stack detection, decision-maker contacts, and fleet growth signals." } }, { "@type": "Question", "name": "How do I get an FMCSA API key?", "acceptedAnswer": { "@type": "Answer", "text": "The official FMCSA offers free API keys through their developer portal at mobile.fmcsa.dot.gov, which requires a Login.gov account. For AlphaLoops's enhanced FMCSA API with 200+ data fields, sub-100ms response times, and proprietary intelligence, contact our team to get API access." } }, { "@type": "Question", "name": "What data does the FMCSA API return?", "acceptedAnswer": { "@type": "Answer", "text": "The official FMCSA QCMobile API returns basic carrier identity, authority status, BASIC safety scores, and fleet size. AlphaLoops's API adds 100+ additional fields including technology stack (ELD, TMS, fuel card providers), decision-maker contacts, insurance filing details, fleet growth signals, and historical authority changes — data not available from the official FMCSA API." } }, { "@type": "Question", "name": "How is AlphaLoops different from the official FMCSA API?", "acceptedAnswer": { "@type": "Answer", "text": "The official FMCSA API is limited to 50 results per query, has no bulk download, no webhooks, no SDKs, and returns only basic FMCSA census data. AlphaLoops enhances this with sub-100ms response times, 200+ fields including proprietary data (technology stack, contacts, growth signals), bulk data delivery in CSV/JSON/Parquet, nightly updates, CRM integrations, and Python/Node.js SDKs." } }, { "@type": "Question", "name": "What are the FMCSA API rate limits?", "acceptedAnswer": { "@type": "Answer", "text": "The official FMCSA API limits results to 50 carriers per query. AlphaLoops's API supports 10,000+ requests per minute with no result-count caps, plus bulk data downloads for high-volume use cases. We also offer nightly data delivery for teams that need complete FMCSA datasets." } }, { "@type": "Question", "name": "Can I look up carriers by MC number or company name?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. AlphaLoops's API supports lookups by DOT number, MC/MX docket number, and company name (with fuzzy matching). You can also search by state, fleet size range, authority type, safety rating, and technology stack to build targeted carrier lists." } }, { "@type": "Question", "name": "How often is the data updated?", "acceptedAnswer": { "@type": "Answer", "text": "AlphaLoops updates FMCSA carrier data daily. Authority status, safety ratings, and inspection records are refreshed every 24 hours. Technology stack and contact data are updated through continuous carrier surveys and web intelligence. Nightly data subscribers receive delta files by 6 AM EST." } }, { "@type": "Question", "name": "Do you offer bulk FMCSA data downloads?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. AlphaLoops offers the complete FMCSA census as a nightly data subscription delivered in CSV, JSON, or Parquet format. The full dataset covers 2.3M+ carriers with 200+ fields. Daily delta files contain only the ~50,000 records that changed, enabling efficient incremental updates." } } ] } ] }, { "@context": "https://schema.org", "@type": "WebSite", "name": "AlphaLoops", "url": "https://runalphaloops.com/" } ] --- [![](/lovable-uploads/AlphaLoops-Logo-2025_Black-Type_White-Background_3280x1024.png)](/) [Product](/product) [Solutions](/solutions) [ Insurance Commercial auto, MGAs, trucking insurance programs ](/solutions/insurance)[ Fleet Payments Fuel cards, expense cards, AP, driver pay ](/solutions/fleet-payments)[ TMS TMS sales, BD, and RevOps ](/solutions/tms)[ Broker Risk Fraud intelligence for brokers and 3PLs ](/solutions/broker-risk)[ Telematics Telematics, ELD, dashcam, and connected fleet sales ](/solutions/telematics) [All solutions →](/solutions) [Integrations](/integrations) [ Salesforce AppExchange managed package · push to Account, Lead, Contact ](/integrations/salesforce)[ HubSpot Managed app · push to Company and Contact with associations ](/integrations/hubspot)[ Microsoft Dynamics 365 Power Automate connector · push to Dataverse Account and Contact ](/integrations/dynamics)[ n8n Verified community node · AI agent workflows ](/integrations/n8n)[ MCP Server Hosted Model Context Protocol · Claude, Cursor, Windsurf ](/mcp) [All integrations →](/integrations) [Pricing](/pricing)[Research](https://research.runalphaloops.com)[What's New](/whats-new) [Log In](https://alphafreight.runalphaloops.com/login)[Book a Demo](/contact) REST API # FMCSA API Real-time carrier lookup, safety data & authority intelligence for 2.3M+ motor carriers. Sub-100ms responses with 200+ data fields. **AlphaLoops is a commercial alternative to the FMCSA QCMobile API and SaferWebAPI** that provides REST access to 2.3M+ motor carrier records enriched with operating authority, BASIC safety scores, fleet intelligence, contact data, and proprietary technology stack detection — delivered via a single authenticated endpoint with sub-100ms response times. Lookup [Get API Access](https://runalphaloops.com/contact)[View Documentation](/fmcsa-api/docs) GET /api/v1/carriers/{dot\_number} ``` { "dot_number": "2247505", "legal_name": "SWIFT TRANSPORTATION CO OF ARIZONA LLC", "dba_name": "SWIFT TRANSPORTATION", "physical_state": "AZ", "authority_status": "AUTHORIZED", "authority_types": ["COMMON", "CONTRACT"], "power_units": 18643, "drivers": 22891, "safety_rating": "SATISFACTORY", "vehicle_oos_rate": "4.2%", "technology": { "eld_provider": "Platform Science" } } ``` 2.3M+ Motor Carriers 200+ Data Fields <100 ms Response Time 365 Updates / Year ## 200+ Data Fields Per Carrier Everything the official FMCSA API offers, plus proprietary intelligence you can't get anywhere else. ### Carrier Identity DOT number, MC number, legal name, DBA, physical and mailing addresses, phone, email. DOT Number MC Number Legal Name DBA Address Phone ### Operating Authority Active/inactive status, authority types (Common, Contract, Broker), effective dates, revocation history. Authority Status Authority Types Effective Dates Revocations ### Safety & Compliance BASIC scores, out-of-service rates, crash records, inspection history, safety ratings. BASIC Scores OOS Rates Crash Data Inspections ### Fleet Intelligence Power units, driver counts, equipment types, cargo carried, fleet growth signals. Power Units Drivers Equipment Growth Signals ### Technology Stack Exclusive ELD/telematics provider, TMS platform, fuel card provider — data not available from FMCSA directly. ELD Provider TMS Platform Fuel Cards ### Contact Enrichment Exclusive Decision-maker names, titles, emails, and phone numbers for targeted outreach. Names Titles Emails Direct Lines ## AlphaLoops API vs. Official FMCSA API The official QCMobile API is a starting point. AlphaLoops adds the intelligence layer that makes FMCSA data actionable. Feature AlphaLoops FMCSA API Carrier Identity (DOT, MC, Name, Address) Operating Authority Status Safety Ratings & BASIC Scores Inspection & Crash History Technology Stack (ELD, TMS, Fuel Card) Decision-Maker Contacts Fleet Growth Signals Insurance Filing Details Sub-100ms Response Time Bulk Data Download (CSV/JSON/Parquet) Webhook Monitoring & Alerts Python & Node.js SDKs Daily Data Updates Weekly Rate Limit 10K+/min 50 results/query CRM Integration (Salesforce, HubSpot) Service Offerings (Consulting, Custom Reports) ## Get Started in Minutes A single API call to look up any carrier by DOT number, MC number, or company name. cURLPythonNode.js Copy ``` curl -X GET "https://api.runalphaloops.com/v1/carriers/2247505" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" ``` ## Built for Transportation & Logistics Teams From carrier vetting to lead generation — one API powers every use case. ### Freight Brokers Instantly vet carriers before tendering loads. Check authority status, safety ratings, insurance coverage, and out-of-service history in real time. ### Insurance Underwriters Assess carrier risk with BASIC scores, crash history, inspection data, and fleet size. Automate underwriting decisions with comprehensive safety intelligence. ### TMS & SaaS Platforms Enrich your platform with carrier data. Embed DOT lookups, authority monitoring, and compliance checks directly into your transportation management system. ### Sales & Marketing Teams Build targeted carrier lists by fleet size, geography, technology stack, and growth signals. Reach decision-makers with verified contact data. ## Frequently Asked Questions ### What is the FMCSA API? ### How do I get an FMCSA API key? ### What data does the FMCSA API return? ### How is AlphaLoops different from the official FMCSA API? ### What are the FMCSA API rate limits? ### Can I look up carriers by MC number or company name? ### How often is the data updated? ### Do you offer bulk FMCSA data downloads? Related reading - [FMCSA API Alternatives: A Complete Guide to Carrier Data APIs (2026)](/guides/fmcsa-api-alternatives-a-complete-guide-to-carrier-data-apis-2026) - • - [The Complete Guide to FMCSA API Data](/fmcsa-api/guide) ## Start Building with FMCSA Data Today Access 2.3M+ motor carriers with 200+ data fields. Real-time lookups, bulk downloads, and CRM integrations. 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