What is API?

What is API ?
An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other. It defines the methods and data formats that applications can use to request and exchange information. Essentially, APIs enable the integration of different systems, allowing them to share functionalities and data seamlessly.
APIs can be used in various ways, such as:
Web APIs: Enable communication between a web server and a client (e.g., web browsers, mobile apps).
Library APIs: Allow software components or libraries to interact with one another within the same application.
Operating System APIs: Facilitate communication between software applications and the operating system.

