W3c MCP Server: Install & Setup

Install W3c in Claude Code

Claude Code

claude mcp add --transport http w3c https://gateway.pipeworx.io/w3c/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "w3c": {
      "url": "https://gateway.pipeworx.io/w3c/mcp"
    }
  }
}

Claude Code

claude mcp add w3c -- npx -y @pipeworx/mcp-w3c

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "w3c": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-w3c"
      ]
    }
  }
}

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable). ~800 current web…

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local + Remote. Can run locally or be used as a hosted remote server.

Run: claude mcp add --transport http w3c https://gateway.pipeworx.io/w3c/mcp

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