Browser Compat MCP Server: Install & Setup

Install Browser Compat in Claude Code

Remote URL

Claude Code

claude mcp add --transport http browser-compat https://browser-compat.caseyjhand.com/mcp

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

{
  "mcpServers": {
    "browser-compat": {
      "url": "https://browser-compat.caseyjhand.com/mcp"
    }
  }
}

npm

Claude Code

claude mcp add browser-compat -- npx -y @cyanheads/browser-compat-mcp-server

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

{
  "mcpServers": {
    "browser-compat": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/browser-compat-mcp-server"
      ]
    }
  }
}

Frequently asked questions

What does the Browser Compat MCP server do?

Browser compatibility and Baseline status for any web feature — offline, from bundled MDN data.

Is the Browser Compat 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 Browser Compat run locally or remotely?

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

How do I add Browser Compat to Claude Code?

Run: claude mcp add --transport http browser-compat https://browser-compat.caseyjhand.com/mcp

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