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.
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.
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.
claude mcp add knock-mcp -- npx -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"
]
}
}
}
{
"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).
Ask a person on an Apple device or in a browser, then read their answer.
Read the three.ws vanity-address market: quote difficulty + USDC price, browse the board.
Open HTML reports in the browser and edit them live while the person watches, or by hand.
Browse and discover the public three.ws agent marketplace and skills catalog. Read-only.
A wall of people building with AI: who is building what, and where to reach them.
Quote a proxy-presence mission: what a real person on the ground in city X costs.
Tell your human in person: a 3D character walks onto their open browser tab and says it out loud.
Read, map and crawl the web, and drive a real browser. Pay per call, no key, no signup.
Answers built from our own checks of this server.