Understanding APIs: How Applications Talk to Each Other

An API is a way for one application to request data or actions from another application. It is one of the main reasons modern software can connect, automate, and share information.

A simple way to think about it

If a website or app needs information from another system, the API acts like the bridge that carries the request and response.

Why it matters

APIs make integration possible. They allow apps to work together without needing to be built as one huge system.

Takeaway

Once you understand APIs, many digital products start to make much more sense.