Developer Portal

Developer Portal is Black Book’s cloud-based Web API development environment designed to help you integrate our values into your product as quickly and easily as possible.

  • Test Harness – allows you to make API calls in real time and see the results before you write a single line of code.
  • Documentation - in Developer Portal, you always have the latest version of the API documentation.
  • Security – manage your own IP addresses, user credentials and domain names.
  • Activity Reporting – ability to check your Web API usage activity and to view transaction logs real-time
New! Access our API's with GraphQL

Our Used Car Web API and Retail Web API are now available using GraphQL. Click on the links below for more details.

Click here to view the Used Car Web API GraphQL documentation.

Click here to view the Retail API GraphQL documentation.

For inquiries or more information or data, email us at or call 1-800-300-6625 .
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