Also known as: Application programming interface (API) Β· Application Programming Interface (API) Β· API
Application Programming Interface (API) is a defined set of functions, protocols, syntax, and access points that allows software components to communicate and use one another's capabilities. APIs may expose operating-system functions, web services, databases, hardware features, libraries, or AI model services. Well-designed APIs reduce integration complexity by providing predictable methods for exchanging data and invoking functionality.
A set of subroutine definitions, communication protocols, and tools for building software. In general terms, it is a set of clearly defined methods of communication among various components. A good API makes it easier to develop a computer program by providing all the building blocks, which are then put together by the programmer. An API may be for a web-based system, operating system, database system, computer hardware, or software library. APIs are widely used in modern web development to enable applications to exchange data in real time.