API Documentation Generator

What Is API Documentation?

API documentation is a technical reference manual that explains how to use an API effectively. It includes endpoint URLs, request methods, parameters, headers, authentication requirements, request body formats, and example responses. Good API documentation is essential for developer adoption and reduces support overhead.

This generator helps you create clear, consistent API documentation in Markdown or HTML format. Fill in the form and the documentation is generated for you in real time.

How to Use This Generator

1. Enter the endpoint details — HTTP method, URL, description, and tags.
2. Configure authentication — Select the auth type (Bearer, Basic, API Key, or OAuth 2.0).
3. Add parameters — Define query parameters with name, type, required status, and description.
4. Set headers — Add request headers with example values and descriptions.
5. Provide examples — Paste JSON examples for request body and response body.
6. Choose output format — Select Markdown or HTML and copy or download the result.

Generated Documentation Example

# GET /api/v1/users

Retrieve a list of all users with pagination support.

**Authentication:** Bearer Token

**Tags:** users, admin

## Query Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| page | integer | Optional | Page number |
| limit | integer | Optional | Items per page |

## Example Response

**200** — Successful response

```json
{
  "data": [
    { "id": 1, "name": "John Doe" }
  ],
  "meta": {
    "page": 1,
    "total": 50
  }
}
```

FAQs