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Windsurf

Castle MCP by usefulapi for Windsurf

io.usefulapi/castle

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

client:Windsurf transport:streamable-http tools:14

Install Castle MCP by usefulapi in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

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

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

What Windsurf can do once it is connected

Castle MCP by usefulapi in other clients