Application Programming Interface (API) is a set of definitions, protocols, and tools for building application software. In general terms, it is a set of clearly defined methods of communication between various software components. An API often includes specifications for routines, data structures, object classes, variables or remote calls. API makes it easier to develop a computer program by providing all the building blocks, which are then put together by the programmer.
CFAVoice’s API may be for a web-based system, operating system, database system, computer hardware or a software library. POSIX, Microsoft Windows API, the C++Standard Template Library and Java APIs are examples of different forms of APIs.
