Definition of API

Application Program Interface. An API is a set of commands, functions, and protocols which programmers use when building software for a specific operating system. The API allows programmers to use predefined functions to interact with the operating system instead of writing them from scratch.

Technology can sometimes be hard to decipher. So if you’re searching for the definition of API then the Freesat Glossary can help. Take a look at the above information for the API definition and an explanation of Application Program Interface.