Brazilian Vehicles and Prices vs ProblemsByVin

Brazilian Vehicles and Prices (the FIPE API) wraps Brazil's official Fundação Instituto de Pesquisas Econômicas price table for cars, motorcycles, and trucks, returning brand, model, year, and the government reference resale price as JSON. A live GET and OPTIONS preflight against its real API host, parallelum.com.br/fipe/api/v1/carros/marcas, both returned access-control-allow-origin: *, resolving the stored "no" cors to "yes"; no key was required, reconfirming auth "None" over HTTPS. The service is capped at 500 free unauthenticated requests/day, 1,000/day with a free registered token, or unlimited via a paid plan at fipe.online — freemium.

ProblemsByVin's Data Center publishes derived, CC BY 4.0-licensed datasets built from NHTSA's owner-complaint and recall record — a reliability scorecard, failure-mileage quartiles, and post-warranty failure patterns — as weekly-refreshed CSV and JSON downloads plus a machine-readable /data/catalog.json manifest. A live GET against both the docs page and the catalog endpoint returned access-control-allow-origin: *, reconfirming cors "yes"; no key was required, reconfirming auth "None" over HTTPS. The datasets are free to use, republish, and remix with attribution — free.