For most applications, all kinds of activities, including most user interactions, take place behind the scenes, in the "backend". Backend services are typically defined as the services that come from the server-side portion of a website or application. It is the area where configuration of server, databases, interfaces and operating system occurs in order to power an application's front end. Developers looking for APIs, SDKs, and Source Code Samples for Backend operations are in the right place. To receive updates about Backend APIs, click the TRACK THIS CATEGORY button below. And, if you want updates from other ProgrammableWeb categories, be sure to click the track button on those category pages as well.