What is an Application Programming Interface? (API)

An Application Programming Interface or API, is a collection of guidelines and protocols that enable software applications to interact and exchange data with one another. It defines the methods and data formats that programs can use to request and exchange information, enabling developers to integrate different systems or services.

APIs are crucial for enabling the functionality of web applications, mobile apps, and software tools. For example, a weather app may use an API to pull weather data from a remote service and display it to users. APIs allow businesses to add features, integrate third-party services, or automate processes without having to build everything from scratch, making them essential for modern software development.