# API Reference

> Complete API reference for Stack0 endpoints. Documentation for email, CDN, and image processing APIs with examples and response schemas.

Complete reference for all Stack0 API endpoints. Base URL: `https://api.stack0.dev/v1`

## Quick Links

[Email Endpoints Send, list, and manage emails](https://www.stack0.dev/docs/api-reference/email)

[CDN Endpoints Upload, manage, and transform assets](https://www.stack0.dev/docs/api-reference/cdn)

## Authentication

All API requests require a valid API key in the Authorization header:

```
Authorization: Bearer sk_live_your_api_key
```

## All Endpoints

---

Source: https://www.stack0.dev/docs/api-reference
llms.txt: https://www.stack0.dev/llms.txt
Sitemap: https://www.stack0.dev/sitemap.xml
Documentation: https://www.stack0.dev/docs
OpenAPI spec: https://www.stack0.dev/openapi.json
MCP server: https://api.stack0.dev/mcp