VIN Decoder APIs
VIN decoders differ mainly in what they return after the decode. NHTSA vPIC is free with no key and gives manufacturer, make, model and equipment from the US government database. Window Sticker, also free, links a US VIN to the original window sticker PDF. CarsXE and Auto.dev add vehicle history, recalls, market value or listings, and CarAPI pairs VIN decoding with OBD-II codes.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
Auto.devVIN decoding, vehicle listings, specs, recalls, and payment/cost estimates for cars. Transport & Travel › Cars & Vehicles | Freemium | API key | JSON | <100/day | Live |
CarAPIUS vehicle years, makes, models, trims, VIN decoding, and OBD-II codes as JSON. Transport & Travel › Cars & Vehicles | Freemium | API key | JSON | 1k–10k/day | Live |
CarsXEVIN decoding, license plate lookup, vehicle history, market value and recalls from one API. Transport & Travel › Cars & Vehicles | Freemium | API key | JSON | — | Live |
NHTSA vPIC APIVIN decoding, manufacturer, make/model and equipment data from the US NHTSA vehicle database. Transport & Travel › Cars & Vehicles | Free | None | JSON | Unlimited | Live |
Window StickerDecodes a US VIN to vehicle specs and links to the original manufacturer window sticker PDF. Transport & Travel › Cars & Vehicles | Free | None | JSON | Unlimited | Live |
Auto.devFreemiumLive
VIN decoding, vehicle listings, specs, recalls, and payment/cost estimates for cars.
API key · JSON
<100/day
llms.txt
CarAPIFreemiumLive
US vehicle years, makes, models, trims, VIN decoding, and OBD-II codes as JSON.
API key · JSON
1k–10k/day
OpenAPI spec
CarsXEFreemiumLive
VIN decoding, license plate lookup, vehicle history, market value and recalls from one API.
API key · JSON
—
OpenAPI spec · llms.txt
NHTSA vPIC APIFreeLive
VIN decoding, manufacturer, make/model and equipment data from the US NHTSA vehicle database.
None · JSON
Unlimited
no machine-readable spec
Window StickerFreeLive
Decodes a US VIN to vehicle specs and links to the original manufacturer window sticker PDF.
None · JSON
Unlimited
llms.txt
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Choosing a VIN Decoder API
Is there a free VIN Decoder API?
Yes. NHTSA vPIC API and Window Sticker are free to use, and CarsXE, Auto.dev and CarAPI have a free tier alongside paid plans.
Which VIN Decoder APIs work without an API key?
NHTSA vPIC API and Window Sticker need no key or sign-up, so you can try them with a plain request.
Can I call a VIN Decoder API from front-end JavaScript?
NHTSA vPIC API and Window Sticker allow cross-origin requests and need no key, so they work straight from the browser. For the others, call them from your server so your key stays private.
Can I use VIN Decoder APIs in a commercial project?
CarsXE and CarAPI permit commercial use. Auto.dev restricts it, for example to non-commercial or attributed use, so read the terms first.
Which VIN Decoder APIs work with AI agents?
CarsXE and CarAPI publish an OpenAPI spec for generating clients and tools.
Broader: Cars & Vehicles APIs · Transport & Travel APIs
More in Cars & Vehicles: Car Specs APIs