Simply put, whenever you make a call to a server using APIs, this counts as an API call. For example, every time you log in, ask a question on your computer or an app, you're in fact making an API call. ... An API call is the process that takes place after the API is set up and ready to go.

What is an API call?

API calls represent specific operations that your client applications can invoke at runtime to perform tasks, for example: Query data in your organization. Add, update, and delete data. Obtain metadata about your data.

What are API calls used for?

It is the software intermediary that delivers a request to the server and then relays a response back to the client. APIs have become essential tools in the development of software applications as they speed the creation process. They provide initial building blocks required when creating a program.