Cars · 4 min read

How to use the Cars Database API in Python & JavaScript

Vehicle spec data is scattered across sources. The Cars Database API consolidates it behind one request.

By DataNest · Published May 2026

What the Cars Database API does

Complete vehicle specifications by make, model, and year: engine, horsepower, fuel type, transmission, and fuel economy. Responses are JSON, the API runs behind the RapidAPI gateway for auth and rate limiting, and there's a free tier for prototyping.

When to use it

car comparison sites

insurance tools

auto dealerships

The example request

GET https://cars-database-by-datanest1.p.rapidapi.com/v1/cars?make=tesla&model=model 3

Example JSON response

An illustrative response body — run the live demo for the real thing.

{
  "count": 1,
  "cars": [
    {
      "make": "Tesla",
      "model": "Model 3",
      "year": 2022,
      "fuelType": "electric",
      "transmission": "automatic",
      "horsepower": 283,
      "rangeMiles": 272
    }
  ]
}

Common parameters

Every request also needs your RapidAPI auth headers.

Parameter	In	Required	Example
make	query	Yes	tesla
model	query	Yes	model 3
limit	query	No	1
x-rapidapi-key	header	Yes	YOUR_RAPIDAPI_KEY
x-rapidapi-host	header	Yes	cars-database-by-datanest1.p.rapidapi.com

Step by step

1. Subscribe and get your key

Open the Cars Database API on RapidAPI, subscribe to the free BASIC plan, and copy your X-RapidAPI-Key.

2. Call the endpoint

The example call for this API is shown above. The quick-start snippets below send exactly that request in cURL, Python and Node so you get a real response on the first try.

3. Try it without code first

The Cars Database page has a live "Try it" panel — change the input, run it, and inspect the real JSON before you integrate.

4. Integrate and cache

Call it from your backend and cache responses where it makes sense. Most responses change slowly, so even a daily cache keeps you well within the free tier.

Quick-start code

curl --request GET \
  --url 'https://cars-database-by-datanest1.p.rapidapi.com/v1/cars?make=tesla&model=model+3&limit=1' \
  --header 'x-rapidapi-host: cars-database-by-datanest1.p.rapidapi.com' \
  --header 'x-rapidapi-key: YOUR_RAPIDAPI_KEY'

What you can build

Spec autofill

Fill a listing's spec sheet from make, model and year.

Comparison tool

Show side-by-side specs for shortlisted vehicles.

Insurance risk input

Feed engine and power data into a premium calculator.

Wrapping up

If your project needs car comparison sites, the Cars Database API removes the part nobody enjoys building. It's one of 23 in the DataNest collection — grab a free key and make your first call.

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Cars Database updates

New Cars Database guides and endpoint updates, occasionally.