UK used-car listings with fair-price grade, 36-month resale forecast and monthly cost per advert.
Wheelwise API is a free Vehicle API that requires no API key, is served over HTTPS and does not support CORS, so it should be called from a server.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
US vehicle recalls, complaints, fuel economy, crash ratings, service bulletins and VIN decoding
Lock and unlock vehicles and get data like odometer reading and location. Works on most new cars
Owner complaints, recalls and failure-mileage statistics by vehicle make, model and year
NHTSA safety recalls by model year, make and model with component, consequence and remedy
Yes. The Wheelwise API is listed in the Vehicle category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Wheelwise API requires no authentication, so you can start making requests without signing up.
Not directly. The Wheelwise API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The Wheelwise API is served over HTTPS, so it's safe to use in production.