Question - What is an API?
Answer -
API is an acronym that stands for "Application Programming Interface". It is a set of routines, protocols, and tools used for building Software applications. API is an interface, so it specifies how one software program should interact with other software programs.
In other words, we can say that API is an Application Programming Interface that acts as an interface between two software applications and allows these two software applications to communicate with each other. API is a collection of software functions that another software program can execute.