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whoisbrowsing MCP Server

by whoisbrowsing Your server? Claim it
not responding

whoisbrowsing is listed as active in the registry but did not answer our last check. It exposes 3 tools.

Add live visitor cursors to any website, no signup: create a site, get the snippet, check it's live.

Uptime history 18 days of history · worst day 0%
18 days agonow
26.4%
Uptime 24h
24 of 91 checks
3
Tools
read from the server
337 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 3

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 27 October 2026. No other catalogue keeps this.

27 Oct 2 tool descriptions were rewritten check_live, create_site
27 Oct a tool changed the parameters it asks for create_site

whoisbrowsing does not always answer

Over the last week it answered 20.3% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add mcp --transport http https://whoisbrowsing.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://whoisbrowsing.com/mcp
~/.codex/config.toml
[mcp_servers.mcp]
url = "https://whoisbrowsing.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://whoisbrowsing.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://whoisbrowsing.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

install
get_install_instructions
Returns the install guide (Markdown) for one platform: where the script tag goes, a Content-Security-Policy note and how to verify. Call it without a platform, or with an unknown one, to get the list of platforms.
live
check_live
Asks the live server whether the site's script is connected right now: the websites with a visitor, how many visitors, and which websites the owner is watching. Needs the site's owner key, the part after #wib= in the watch link create_site returned. Load a page that has the tag before calling it: a tab other than the owner view (it shows up as "you, testing"), or a fresh browser context.
site
create_site
Creates a whoisbrowsing site with no sign-up and returns its script tag (snippet), one watch link per website, a one-time claim link, a terms sentence for the human and the next steps. Call it once per project; one site can hold several domains. Never write the watch or claim link into a file, commit or log.

Endpoints

URLTransportStateLatencyChecked
https://whoisbrowsing.com/mcp streamable-http answering 82 ms 11 min ago

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same job, measured the same way
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Hazelchat
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Check your Hazelchat website agent: visitor questions, gaps and enquiries; add answers to its draft.

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Perfboard Designer
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Design perfboard and stripboard layouts, check the wiring and get a link to open them in the editor.

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The UI Index
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whoisbrowsing — questions

Answers built from our own checks of this server.

What can whoisbrowsing do?
It exposes 3 tools, read directly from the server on our last check. Among them: check_live, create_site, get_install_instructions. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is whoisbrowsing working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 24 of 91 checks got a reply (26.4%), average response time 337 ms. The bar chart above shows every period we have measured.
The registry lists whoisbrowsing as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect whoisbrowsing?
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 is a remote server, so there is nothing to install — the client connects to the address.
Does whoisbrowsing need an API key?
No. whoisbrowsing completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is whoisbrowsing?
It answers our handshake in 337 ms on average, which is faster than 42% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.