# Sourcey

> Open-source (AGPL-3.0) documentation engine. A CLI that turns OpenAPI, MCP servers, Doxygen/C++, godoc, rustdoc, MkDocs, and Markdown into one static-HTML documentation site you own. It also emits llms.txt and llms-full.txt for AI agents from the same source. Self-host is free forever; the static output deploys anywhere static files work.

Sourcey is made by 0state. This site, sourcey.com, documents itself with a Sourcey build at /docs.

## Start
- [Docs](https://sourcey.com/docs): Full documentation, built with Sourcey itself.
- [Quickstart](https://sourcey.com/docs/quickstart): Zero to a running docs site in under a minute.
- [Install](https://sourcey.com/docs/install): npm, Homebrew, Docker, and Nix install paths.
- [Live demo](https://sourcey.com/cheesestore): The Cheese Store API, rendered by Sourcey from an OpenAPI spec.

## Sources Sourcey reads
- OpenAPI 2.0 through 3.2: REST API reference with auto-generated code samples.
- MCP server manifests: tools, resources, and prompts rendered as reference.
- Doxygen XML: C++, Java, and other Doxygen-parsed languages.
- godoc: Go packages, extracted via the Go toolchain.
- rustdoc: Rust crates, via rustdoc JSON.
- MkDocs: existing mkdocs.yml nav, snippets, admonitions, and assets.
- Markdown: directive components (steps, cards, tabs, callouts) alongside reference.

## Compare
- [vs Mintlify](https://sourcey.com/alternative/mintlify)
- [vs GitBook](https://sourcey.com/alternative/gitbook)
- [vs ReadMe](https://sourcey.com/alternative/readme)
- [vs Redocly](https://sourcey.com/alternative/redocly)
- [vs Doxygen](https://sourcey.com/alternative/doxygen)
- [vs Sphinx](https://sourcey.com/alternative/sphinx)
- [vs Swagger UI](https://sourcey.com/alternative/swagger-ui)
- [All comparisons](https://sourcey.com/alternative)

## Writing
- [Documentation Is the Contract Surface](https://sourcey.com/writing/documentation-is-the-contract-surface)
- [Don't Replace Doxygen](https://sourcey.com/writing/dont-replace-doxygen)
- [Stop Renting Your OpenAPI Docs](https://sourcey.com/writing/stop-renting-your-openapi-docs)
- [pkg.go.dev Isn't Your Docs Site](https://sourcey.com/writing/pkg-go-dev-isnt-your-docs-site)

## More
- [Examples](https://sourcey.com/examples): Real docs sites built with Sourcey.
- [GitHub](https://github.com/sourcey/sourcey)
- [npm](https://www.npmjs.com/package/sourcey)
- [Full version](https://sourcey.com/llms-full.txt)