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mcp/harbor
Cursor

three.ws Knock for Cursor

io.github.nirholas/knock-mcp

Reach a real person: quote their door, browse who is reachable, knock, and read the reply.

client:Cursor transport:stdio runtime:npm

Install three.ws Knock in Cursor

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "knock-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ],
      "env": {
        "THREE_WS_API_KEY": "<THREE_WS_API_KEY>",
        "THREE_WS_BASE": "<THREE_WS_BASE>",
        "THREE_WS_TIMEOUT_MS": "<THREE_WS_TIMEOUT_MS>"
      }
    }
  }
}

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

three.ws Knock in other clients

three.ws Knock MCP server