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AppNexus API Support

The AppNexus API services are for use by current AppNexus customers. Service endpoints are available only to customers with active accounts and API permissions. Therefore, full product support is available only to AppNexus customers. If you are not yet an AppNexus customer, you can view these reference documents and learn about the product and its potential to meet your company's needs.

For Current AppNexus customers:
All support requests can be submitted and routed to the appropriate AppNexus team directly from our Customer Support Request Form located at For a description of our support mission and the ways we can help you be successful on the AppNexus platform, please read Welcome to AppNexus Client Services (Customer login required).

For complete information on support services, see the Customer Support Portal Guide (Customer login required).


  • API Getting Started - This section provides an introduction to the API onboarding process and best practices, walks you through the typical setup steps and common operations for network users, and covers important concepts such as breaking changes and API usage constraints.
  • API Semantics - Need more details on API structure and RESTful conventions? Take a look at this page.
  • Knowledge Base Articles - Looking for in-depth answers from product experts? Explore our knowledge base library (Customer login required).
  • Welcome to AppNexus Client Services - Want more details about AppNexus Customer Support? Go here for a description of our support mission and the ways in which we can best help you be successful on the AppNexus platform (Customer login required).

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