WSG Check MCP Server: Install & Setup

Install WSG Check in Claude Code

Claude Code

claude mcp add wsg-check -- npx -y @sustainablewebsites/wsg-check

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

{
  "mcpServers": {
    "wsg-check": {
      "command": "npx",
      "args": [
        "-y",
        "@sustainablewebsites/wsg-check"
      ]
    }
  }
}

Frequently asked questions

What does the WSG Check MCP server do?

Check websites against the W3C Web Sustainability Guidelines and look up the guidelines

Is the WSG Check MCP server free?

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

Does WSG Check run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add WSG Check to Claude Code?

Run: claude mcp add wsg-check -- npx -y @sustainablewebsites/wsg-check

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