What is capuz?

Capuz is a small server that lets an AI chat model directly edit the pages of a static website. It is built as a plugin for Open WebUI, a chat interface, and works through a connection standard called MCP that lets AI models call tools. Once connected, the model can read, write, rename, and delete HTML or XML pages on your site as if it had its own set of editing commands. It is meant for hand-written static sites and landing pages, the kind where the file sitting in storage is exactly what gets served to visitors. It is explicitly not for sites built with frameworks like Next.js, Astro, or Hugo that need a build step before publishing, since those generate their final pages from source files rather than serving them directly. The tool supports four different ways of storing and reaching your site's files. If your site lives on the same server as the cms-api tool itself, it can read and write files directly on disk. If your site is on a separate remote server, it can connect over SFTP using SSH key authentication. If your site is hosted on a static platform like GitHub Pages, Netlify, or Vercel, it can push changes as Git commits, which typically appear live within 20 to 90 seconds. If your site is stored in an S3-compatible bucket such as Cloudflare R2 or AWS S3, changes can go live instantly. The project runs as a Docker container, configured through environment variables that specify which storage method to use and how to reach it. Once running, you connect it to Open WebUI's admin settings as either an MCP tool server or an OpenAPI tool server, authenticated with an API key you generate yourself. Among its available tools are listing published pages and drafts, reading page content, saving a draft version of a page before publishing, making small find-and-replace edits without rewriting a whole page, and moving, renaming, or copying pages while warning about any links that would break.