Sourcey Sourcey documentation engine

API docs you actually own.

Sourcey turns OpenAPI, MCP, and Markdown into a polished docs site you can deploy anywhere. Free forever, static by default, and built to live on your server.

Get Started Live Demo →

OpenAPI + MCP

Reference docs for REST APIs and MCP servers.

For humans and machines

Markdown guides, rich components, and llms.txt from one source.

Static output

Builds to static HTML. Deploy anywhere.

Free forever

Open source, no platform bill.

Explore live demo
Sourcey demo — Cheese Store API documentation
Get started

Up and running in seconds.

Three commands from empty directory to production-ready docs. No accounts, no dashboards, no build pipelines to assemble.

Terminal
$ npx sourcey init
› Created sourcey.config.ts
› Added 3 example pages
✓ Ready
$ sourcey dev
› Parsing openapi.yaml (42 endpoints)
› Rendering 12 pages
✓ Sourcey v3.4
http://localhost:4400
Ready in 1.2s
$ sourcey build
› Writing 50 pages to dist/
✓ Built in 1.8s
01

Configure

Configuration Reference

Point it at your OpenAPI spec, MCP server, or markdown. One TypeScript file, type-checked with full autocomplete.

npx sourcey init
02

Write

Writing Pages

Markdown with rich components — steps, cards, accordions, code blocks. Guides alongside your API reference.

sourcey dev
03

Ship

Deploying

Static HTML, zero runtime. Deploy to GitHub Pages, Vercel, S3, or anywhere you host files.

sourcey build
Features

Everything you need for self-hosted docs.

OpenAPI, MCP, Markdown, search, themes, and llms.txt in one tool.

Generate from anything

One site from every spec format you use. Point sourcey at what you have and it renders the reference.

  • OpenAPI reference

    Endpoints, schemas, request/response examples. Auto-generated code samples in cURL, JavaScript, Python, Go, Ruby, Rust, and more.

  • MCP server docs

    Tools, resources, and prompts rendered as browsable reference. JSON-RPC, TypeScript, and Python code samples.

  • C++ and Java via Doxygen

    Feed in Doxygen XML output and get modern, searchable API docs. Works with Moxygen for Markdown-based rendering.

  • Markdown guides

    Steps, cards, accordions, tabbed code blocks. Rich components in standard markdown alongside your API reference.

Built for developers

The toolchain feels like the rest of your stack. TypeScript, Vite, instant feedback.

  • TypeScript config

    sourcey.config.ts with defineConfig(). Full autocomplete, type checking. One file defines your entire docs site.

  • Vite dev server

    SSR hot reload on every component and CSS change. Spec and markdown changes trigger instant refresh.

  • Instant search

    Client-side fuzzy search across all pages and API operations. Cmd+K to find anything. Works offline.

Ship with confidence

Control how it looks and where it goes. Choose a layout, set your brand, deploy the static output wherever you want.

  • Static HTML output

    Zero framework runtime shipped. No vendor lock-in. Deploy to GitHub Pages, Vercel, S3, anywhere.

  • Three theme presets

    Default sidebar + TOC. Minimal single column. API-first three-column like Stripe. Colors, fonts, and custom CSS on top.

  • Dark mode

    Semantic design tokens, light/dark logo variants, localStorage persistence. Looks great either way.

  • llms.txt generation

    Auto-generate llms.txt and llms-full.txt alongside your HTML. Your docs serve developers and AI agents from one build.

Built in

Built in, not bolted on.

Dark mode, search, and themes work out of the box. No config, no extra dependencies.

Looks great either way.

Semantic design tokens, light and dark logo variants, localStorage persistence. Every component designed for both modes.

My API
Search...
Docs API Reference Changelog
Getting Started
Introduction
Quick Start
Authentication
Concepts
Webhooks
Directives
Introduction
Welcome to the API documentation. This guide covers authentication, endpoints, and best practices.
$ npm install @myapi/sdk
+ @myapi/[email protected]
Quick Start
GET
POST
DELETE
⌘K
↑↓ navigate ↵ open

Find anything. Instantly.

Client-side fuzzy search across every page and API operation. Cmd+K, start typing. Works offline, no server required.

Three layouts. Your brand.

Pick a preset that fits your docs. Set your colors and fonts. Add custom CSS on top. Ship it.

docs.example.com
Getting Started
API
GET
POST
DEL
Endpoints
GET
POST
PUT
DEL
GET
cURL
JavaScript
Python
Response
Lighthouse Report
100
Performance
100
Accessibility
100
Best Practices
100
SEO

100/100 across the board.

Zero JavaScript runtime means nothing to download, parse, or execute. Every page is semantic HTML with one CSS file. Performance, accessibility, best practices, and SEO — all green.

Comparison

The state of documentation.

Your docs shouldn't depend on someone else's SaaS. Same output quality as the tools that charge hundreds monthly. Static HTML, self-hosted, no vendor between you and your users.

Sourcey Redocly GitBook Mintlify Fern ReadMe
Open source Yes Partial No No No No
Static output Yes Yes No No No No
Zero JS shipped Yes No No No No No
Doxygen / C++ docs Native No No No No No
Config format TypeScript YAML GUI JSON YAML GUI
Local preview Vite SSR Local Cloud Local Local Cloud
No account required Yes Partial No No No No
Self-hosted Yes Yes No No Yes No
Pricing Free $10–$24 $65–$249 $250+ $150+ $79–$3,000+
Sourcey

Own your docs.

Open source. Self-host it, fork it, ship it on your own infrastructure. No account required.

View on GitHub npx sourcey init
Fork the demo →