The eBay Traditional APIs provide programmatic access to eBay marketplace data. It enables third parties to build custom applications, tools, and services that leverage the eBay marketplaces in new ways. eBay traditional APIs enable developers to create applications that perform many of the same operations that you can perform on the eBay site, eBay mobile application, or other eBay tools.
Search eBay; build search and browse experiences.
Retrieve public items and user data to create shopping and marketing applications.
List and manage inventory, fulfill orders, communicate with customers, and more.
After Sale APIs
Manage cancellations, returns, and disputes. Provide buyer and seller communications.