What is an API? (Application Programming Interface)
Learn what an API is, how it works and why it is essential for modern software.
An API (Application Programming Interface) is a set of rules and protocols that allow software applications to communicate with each other.

What is What is an API? (Application Programming Interface)?
An API (Application Programming Interface) is a set of rules and protocols that allow software applications to communicate with each other.
How does What is an API? (Application Programming Interface) work?
APIs make it possible to share data and functionality between systems without needing to know how the other side works internally. REST and GraphQL are the most commonly used API styles for web applications.
Examples
- The Google Maps API to load maps on a website
- The Stripe API for online payments
- Social media APIs for sharing content
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