Perimeter Watch for Cursor

io.github.entradox/perimeter-watch-scanner

Passive domain-perimeter checks — cert expiry, subdomain takeover, lookalikes — as agent tools

client:Cursor transport:streamable-http tools:6

Install Perimeter Watch in Cursor

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

{
  "mcpServers": {
    "perimeter-watch-scanner": {
      "url": "https://perimeter-watch-api-production.up.railway.app/mcp/"
    }
  }
}

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