What is API?
Also called: Application programming interface
An API is an interface that lets programs talk to each other. With an AI API, developers build AI into their own apps.
Example
An online shop sends product data to an AI API and gets finished descriptions back.
For pros
AI APIs usually bill per token, split into input and output. Rate limits, data protection terms and where data is stored all matter.
Related prompts, skills, agents and tools
Sources: developer.mozilla.org, Wikipedia · Checked on 19 October 2026
Written by AI Compare Ninja with AI assistance and edited by us. Every explanation is our own text.
