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WARDEN — MCP Security Firewall for Cursor

io.github.alexar76/warden

MCP security firewall: vet tool definitions before they reach the model.

client:Cursor transport:stdio runtime:npm

Install WARDEN — MCP Security Firewall in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "warden": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@aimarket/warden"
      ]
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

WARDEN — MCP Security Firewall in other clients