What Is an API? Simple Interview Explanation

Added: 2026-05-05

[00:00:00]You've probably heard the word API, but what does it actually mean? An API is a messenger that helps one app talk to another app or system. Think of it like a waiter in a restaurant. You tell the waiter what you want. The waiter takes your request to the kitchen and then brings the food back to you. That is exactly how an API works. For example, when a weather app shows today's temperature, it often gets that data from another server through an API. So simply, an API helps systems communicate and share data. Follow for more simple tech explanations.