# API Documentation Principles

> Good docs = happy developers = API adoption.

## OpenAPI/Swagger Essentials

```
Include:
├── All endpoints with examples
├── Request/response schemas
├── Authentication requirements
├── Error response formats
└── Rate limiting info
```

## Good Documentation Has

```
Essentials:
├── Quick start / Getting started
├── Authentication guide
├── Complete API reference
├── Error handling guide
├── Code examples (multiple languages)
└── Changelog
```