API
1 min read · Reviewed 17 Oct 2026
In short
A way for one piece of software to talk to another.
In plain English
An interface that lets your systems send a request to a service and get a structured answer back — no person, no browser. Most AI tools offer one.
A real example
Instead of a person pasting each enquiry into a chatbot, your form sends it to the model automatically and files the draft reply in your CRM.
Why it matters
APIs are where automation becomes real. They are also where costs become per-use and where a mistake scales instantly, so they deserve a test run on a small batch first.
