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three.ws Knock MCP Server

local only

three.ws Knock runs on your own machine — the client starts it, so there is no endpoint to ping. 41 installs a week from npm. Last commit 1 Nov 2026.

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

Installs per day peak 12 · avg 4 · +215% w/w
a month agotoday
41
Installs / week
npm · @three-ws/knock-mcp
264
Stars
6 open issues
1 Nov 2026
Last commit
1 release in 90 days
Apache-2.0
License
JavaScript

Nothing serious here today

Today is the operative word: we check three.ws Knock every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add knock-mcp -- npx -y @three-ws/knock-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.knock-mcp]
command = "npx"
args = ["-y", "@three-ws/knock-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "knock-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "knock-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/knock-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: THREE_WS_API_KEY (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), THREE_WS_BASE (Base URL of the three.ws API. Override only when self-hosting or targeting a preview deployment), THREE_WS_TIMEOUT_MS (Per-request timeout in milliseconds).

Alternatives to three.ws Knock

same job, measured the same way
Invoke Human Tool
by invokehumantool

Ask a person on an Apple device or in a browser, then read their answer.

answering
three.ws Vanity
by nirholas

Read the three.ws vanity-address market: quote difficulty + USDC price, browse the board.

109 installs/wk local only
hotedit
by thewhey-brian

Open HTML reports in the browser and edit them live while the person watches, or by hand.

140 installs/wk local only
three.ws Marketplace
by nirholas

Browse and discover the public three.ws agent marketplace and skills catalog. Read-only.

78 installs/wk local only
A
AI Daily Brew
by aidailybrew

A wall of people building with AI: who is building what, and where to reach them.

3 tools answering
M
Mission Quotes
by missionforhire

Quote a proxy-presence mission: what a real person on the ground in city X costs.

4 tools answering
three.ws Herald
by nirholas

Tell your human in person: a 3D character walks onto their open browser tab and says it out loud.

31 installs/wk local only
oassis — web for agents
by oassis

Read, map and crawl the web, and drive a real browser. Pay per call, no key, no signup.

14 tools answering

three.ws Knock — questions

Answers built from our own checks of this server.

Why is there no uptime for three.ws Knock?
three.ws Knock runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @three-ws/knock-mcp was installed 41 times last week.
How do I connect three.ws Knock?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @three-ws/knock-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use three.ws Knock?
The npm package @three-ws/knock-mcp was installed 41 times in the last week. Week over week that is +215%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is three.ws Knock open source?
Yes — it is published under the Apache-2.0 licence, written in JavaScript, 264 stars on GitHub and 6 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.