# JOYCO Developer Resources

> The official index of JOYCO resources for developers, coding agents, and technical researchers.

JOYCO is a design and engineering studio, not a public developer platform. The studio website exposes a small, read-only content API for canonical Markdown representations. It requires no authentication. JOYCO does not currently expose authenticated product operations, webhooks, an SDK, or an MCP server.

## Content API

- [JOYCO OpenAPI 3.1 specification](https://joyco.studio/openapi.json): Typed paths, operations, parameters, responses, and JSON error schemas.
- [Homepage Markdown API](https://joyco.studio/api/markdown): Canonical homepage content as `text/markdown`.
- [Developer resources Markdown API](https://joyco.studio/api/markdown/developers): Canonical developer resource content as `text/markdown`.

API errors use `application/json` and include a stable error code, a human-readable message, and a resolution hint.

## Open source

- [JOYCO GitHub organization](https://github.com/joyco-studio): Public repositories, README files, source code, releases, and issue trackers.

## Technical writing

- [JOYCO development logs](https://hub.joyco.studio/logs): Engineering patterns, implementation notes, and lessons from the JOYCO team.

## Machine-readable resources

- [JOYCO llms.txt](https://joyco.studio/llms.txt): Curated agent index following the llms.txt format.
- [JOYCO OpenAPI specification](https://joyco.studio/openapi.json): Machine-readable description of the read-only content API.
- [JOYCO XML sitemap](https://joyco.studio/sitemap.xml): Index of public HTML pages.
- [JOYCO homepage Markdown](https://joyco.studio/index.md): Markdown representation of the studio homepage.
- [This page as Markdown](https://joyco.studio/developers.md): Markdown representation of the developer resource index.

The canonical HTML pages also support HTTP content negotiation. Send `Accept: text/markdown` for Markdown or `Accept: text/html` for HTML.