> For the complete documentation index, see [llms.txt](https://ovion-studio.gitbook.io/keryo-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ovion-studio.gitbook.io/keryo-docs/developers.md).

# Developers

- [Overview](https://ovion-studio.gitbook.io/keryo-docs/developers/overview.md): Build on Keryo with the REST API and the MCP connector — auth, scopes, and base URLs.
- [Authentication](https://ovion-studio.gitbook.io/keryo-docs/developers/authentication.md): Create scoped API keys, understand the scope list, and authenticate REST requests.
- [API reference](https://ovion-studio.gitbook.io/keryo-docs/developers/api-reference.md): Keryo REST API endpoints by resource, with scopes and example requests.
- [MCP connector](https://ovion-studio.gitbook.io/keryo-docs/developers/mcp-connector.md): The Keryo MCP connector — tools, OAuth 2.1 auth, connecting from an AI client, and self-hosting.
- [Rate limits & errors](https://ovion-studio.gitbook.io/keryo-docs/developers/rate-limits-and-errors.md): Rate limiting on publishing, scope and plan errors, and general error-handling guidance.