What Is API Documentation? Definition & Examples

API documentation is technical documentation that describes how to use and integrate with an Application Programming Interface (API). It includes the available endpoints, request and response parameters, authentication methods, error codes, and code examples.

Great API documentation lets a developer go from "I found this API" to "I made my first successful call" with as little friction as possible. It is a key part of broader technical documentation.

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What makes good API documentation?

Good API docs include a quick start, complete endpoint references, real request/response examples, clear authentication instructions, and working sample code.

Related terms

Technical Documentation

Technical documentation describes the technical aspects of a product or system.

Technical Writing

Technical writing is the practice of creating clear, concise documentation that explains complex information to a specific audience.

JSON (JavaScript Object Notation)

JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging structured data.

Documentation

Documentation is written material that explains how something works, how to use it, or how to perform a task.

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What Is API Documentation?

Frequently asked questions

Related terms

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