Vehicle REST API

Vehicle Price

API returns estimate for a vehicle current prices

Use of API requires a permission issued by Trafi and only Finnish data is available through API.

In order to use the API you must have the valid environment-specific username and password. Before any API requests, you need to obtain an API KEY. You will get a valid API KEY (it's called a ticket) by using the ticket API (Please, read how to use ticket API instructions).

The API KEY must be sent in the request custom header element (named ticket or x-api-key). If the API KEY value is valid then API request will be successful (http status code 200), otherwise it will fail (http status code 401). All API requests must be made over HTTPS. Request the username and password

API endpoints

  • - production environment
  • - test environment

API request parameters

id Vehicle registration number or VIN X
mileageToday The vehicle's exact mileage today in kms if known. If not given, the price is evaluated using Bisnode's own data  


API response

price The current price of the vehicle in euros.
confidenceCodePrice Confidence code of the price estimate. Values are between 1 and 5, where 1 describes the most accurate estimate and 5 the least accurate.
averageError Average relative error of similar vehicles. Given as a fraction of the price, e.g. 0.1 = 10%.
confidenceCodeMileage Confidence code of the mileage used in price estimateion. Values are between 1 and 5, where 1 describes the most accurate knowledge of the mileage and 5 the least accurate. Does not apply if mileageToday is given in the request parameters.
requestedParameters The values of all parameters in the API request for debugging purposes.

API request and response example

curl '' -H 'x-api-key: 1234567890ABC'

Successful request and the API return results in JSON format.

    "price": "2323.389215046157",
    "confidenceCodePrice": 1,
    "averageError": 0.1884615765343123,
    "estimatedMileage": 200530,
    "confidenceCodeMileage": 1,
    "requestedParameters": {
        "id": "RPT-248"

Swagger - Technical documentation