MCP server

three.ws Knock

Repository:: github.com/nirholas/three.ws
Homepage:: three.ws/knock
Stars:: 250
Last push:: 2026-10-27
License:: Apache-2.0

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

Good fit for

One-command install
Runs fully local
Apache-2.0 license

Facts

Category: Communication
Pricing: Unknown
Authentication: API key
Transport: stdio
Hosting: Local
Maker: Unknown
Access: Unknown
Language: TypeScript
Install method: npx
Operating system: Unknown
Client: Unknown
License: Permissive
Maintenance: Active

Install

claude mcp add --transport stdio knock-mcp -- npx -y @three-ws/knock-mcp

Paste into claude_desktop_config.json

{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

Paste into ~/.cursor/mcp.json

{
  "mcpServers": {
    "knock-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

Paste into .vscode/mcp.json

{
  "servers": {
    "knock-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

[mcp_servers.knock-mcp]
command = "npx"
args = ["-y", "@three-ws/knock-mcp"]

{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

Env vars and secrets

THREE_WS_API_KEYEnv varSecret
A 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.

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Score: 78

Popularity: 67
Maintenance: 100
Trust: 73
Completeness: 90
Community: 50

Formula version 1

Listed in:

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