three.ws Knock

io.github.nirholas/knock-mcp

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

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp@0.1.0"
      ],
      "env": {
        "THREE_WS_API_KEY": "<your THREE_WS_API_KEY>",
        "THREE_WS_BASE": "https://three.ws",
        "THREE_WS_TIMEOUT_MS": "20000"
      }
    }
  }
}
Environment variables
  • THREE_WS_API_KEYsecretA three.ws API key (sk_live_… / sk_test_…) or OAuth access token. Optional: needed only for knock_inbox and knock_act, which manage your own door. Quoting, browsing, knocking and reading a receipt all work without it. Treat like a password.
  • THREE_WS_BASEBase URL of the three.ws API. Override only when self-hosting or targeting a preview deployment.
  • THREE_WS_TIMEOUT_MSPer-request timeout in milliseconds.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.1.0
Registry
active
Published
9/30/2026

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Add the badge to your site

Show visitors that three.ws Knock is listed here — it’s also the link we check for a free listing.

three.ws Knock — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-nirholas-knock-mcp?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="three.ws Knock — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![three.ws Knock — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-nirholas-knock-mcp?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.