This article is published by AllBusiness.com, a partner of TIME. What are "APIs?" An API (Application Programming Interface) is a set of protocol routines, and tools for building software. APIs allow ...

APIs are application programming interfaces. They are pieces of software that act as a bridge between one application and another application, piece of hardware or database of information, for example ...

A software tool used in software programming that abstracts all the programming steps into a user interface for the developer. An application programming interface (API) is a software tool used in ...