MDN
officialMDN provides documentation for open web technologies including HTML, CSS, JavaScript, Web APIs, and browser compatibility data. Its experimental remote MCP server gives assistants current web platform context for answering implementation and browser-support questions.
What can you do with MDN MCP?
- Fetch live web docs — Ask for current MDN documentation on any HTML, CSS, JavaScript, or Web API topic via the remote MCP server.
- Check browser compatibility — Query up-to-date browser support data for a feature to guide implementation decisions.
- Resolve implementation questions — Get authoritative, current answers on web platform behavior instead of relying on stale knowledge.
Hosted MCP Server
npx add-mcp 'https://mcp.mdn.mozilla.net/'Installs into Claude Code, Codex, Cursor, VS Code and more
Documentation
MDN provides documentation for open web technologies including HTML, CSS, JavaScript, Web APIs, and browser compatibility data. Its experimental remote MCP server gives assistants current web platform context for answering implementation and browser-support questions.
An eligible provider account or plan may be required for authenticated features. Consult the official setup documentation for access requirements and client compatibility.