API documentation
This endpoint is free and proxies live federal sources. Identify your client in the User-Agent header. Do not use this as a bulk census download.
GET /api/carrier
Query with q (USDOT, MC number, or name) or dot. Name searches can return a hit list. A single match returns the full snapshot plus Motus insurance filings.
curl "https://www.truckcrashlookup.com/api/carrier?q=44110"
Upstream sources: QCMobile and Motus Insur. If FMCSA or Socrata is down, this route returns 502.