Cursor

Castle MCP by usefulapi for Cursor

io.usefulapi/castle

Investigate security events and manage the allow/deny lists an analyst acts on.

client:Cursor transport:streamable-http tools:14

Install Castle MCP by usefulapi in Cursor

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

{
  "mcpServers": {
    "castle": {
      "url": "https://castle.usefulapi.io/mcp"
    }
  }
}

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

What Cursor can do once it is connected

Castle MCP by usefulapi in other clients

Castle MCP by usefulapi MCP server