io.github.master-co/master-css
Master CSS
Is the Master CSS MCP server down? Yes. It has given no valid answer since 2026-11-07: crashed on start.
Inspect Master CSS classes, generated CSS, and project stylesheets from your AI client.
crashed on start down since 2026-11-07 · probed 2026-11-14 · unchanged since 2026-11-13
MCP error -32000: Connection closed
SyntaxError: Unexpected identifier 'tooling'
at #createModuleJob (node:internal/modules/esm/loader:640:36)
at #getJo- Run it
- npx -y @master/css-mcp@2.1.4 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Repository
- https://github.com/master-co/css
- Website
- https://css.master.co/guide/ai-coding#connect-the-mcp-server
- Registry
- active, updated 2026-11-12 · registry entry
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- No valid answer since 2026-11-07, in every probe since then.
- The process exited on start before it answered initialize. The error output is above.