docs / api / authentication

Authentication

All API requests must include your unique API key. The key identifies your application and authorizes requests to our servers.

API Key
Pass your API key as a query parameter on every request:

GET
GET https://api.autodata.com/v1/listings?key=YOUR_API_KEY_HERE&format=json
NOTE: API keys are issued upon account creation. Log in to your dashboard to manage keys, view usage, and rotate credentials.

Error Codes

Field

200

Type

success

Description

Request successful

Field

400

Type

bad_request

Description

Missing or invalid parameters

Field

401

Type

unauthorized

Description

Invalid or missing API key

Field

403

Type

forbidden

Description

API key lacks permission for this endpoint

Field

429

Type

rate_limited

Description

Request quota exceeded

Field

500

Type

server_error

Description

Internal server error