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Web & Technology

API (Application Programming Interface) (واجهة برمجة التطبيقات)

An API is a set of rules that lets different software systems talk to each other. It exposes specific functions or data so one application can request a service from another — like a weather app pulling data, or a checkout charging a payment.

In Iraqi dialect

جسر يخلي البرامج تحچي ويا بعض

In detail

APIs are the connective tissue of modern software. Instead of building everything in-house, a system calls an API to add payments, maps, messaging, or AI. A client sends a request — usually over HTTP with a method, endpoint, and data — and the server returns a structured response, typically JSON. Good APIs are well-documented, versioned, authenticated, and rate-limited. They power integrations between a CRM and a call center, between a website and a payment gateway, and between AI agents and the tools they use. Nearly every digital service you use is stitched together by APIs.

Practical example

An e-commerce site calls a payment gateway's API to process card transactions without handling card data itself.

Frequently asked questions

What does an API do in simple terms?

It lets two programs exchange requests and data securely, so you can reuse functionality instead of rebuilding it.

Why are APIs important for AI?

AI agents use APIs as tools — calling them to fetch data, take actions, and connect to real systems.

Related terms

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