CarVector vs RevCarData

CarVector decodes VINs and license plates into specs, images, recall notices, and OBD-II DTC codes for vehicles spanning model years 1925 to 2029. A live unauthenticated GET against its real API host, api.carvector.io/v1/vehicles/{id}, returned a 401 "missing_api_key" JSON error over HTTPS — reconfirming auth "API Key" and https true — with no Access-Control-Allow-Origin header on either that request or a follow-up OPTIONS preflight, resolving the stored "yes" cors to "no". Its pricing page lists a $0 Free tier alongside paid $39/mo and $79/mo plans plus a custom Enterprise tier — freemium.

RevCarData is a global Year-Make-Model-Trim vehicle database covering EU, US, and Asian markets, exposing 38 structured spec fields — MSRP, powertrain, dimensions, and EV/battery metrics — via a REST API and CSV export. A live GET against its real API host, api.revcardata.com/api/v1/vehicles, returned a 401 "Missing X-API-Key header" error carrying access-control-allow-origin echoing the request Origin — reconfirming auth "API Key" and cors "yes" — over HTTPS. Its site offers a free sign-up-and-get-a-key tier alongside paid plans for higher volume — freemium.