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answering

Tap is answering right now. Last checked 11 min ago. 281 installs a week from npm. It exposes 4 tools. Last commit 9 Aug 2026.

Browser MCP for logged-in tasks. Uses your Chrome — credentials stay local. Zero-token replay.

Installs per day peak 247 · avg 50 · -74% w/w
a month agotoday
Uptime history 91 days of history · worst day 91%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
4
Tools
read from the server
106 ms
Response time
average over 24h
281
Installs / week
npm and PyPI

What the code does

We read the source, 5 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

File ships in the package but is absent from the source [пакет] taprun/__init__.py:1, [пакет] taprun/api.py:1, [пакет] taprun/cli.py:1
этот файл ставится пользователю, но в репозитории его нет
Executes code built at runtime packages/executor/src/page.ts:58
  eval(expression: string, ...args: unknown[]): Promise<unknown>;
Runs an external command [пакет] taprun/api.py:64, [пакет] taprun/cli.py:148
    proc = subprocess.run(
Long encoded blob in source extension/lib/pdf-lib.esm.js:15
…t(e+2)],o=hn[t.charCodeAt(e+3)],l[h++]=n<<2|r>>4,l[h++]=(15&r)<<4|i>>2,l[h++]=(3&i)<<6|63&o;return l}(t)))},dn={Courier:"eJyFWdtSGzkQ/RXXPO1WmZSBEAJvjnESb8AmGENCKg+ypj3Wohk5ugAmlX9fzUCyW6s+ysuUfVqXvh61Zr4XI1PX1PjiuLg6C05U1Ns/Ojx42TsYHB4eFf3irWn8VNQUB4xMsIpsCwatU1DUSm8T+JpUtW7XP6N…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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 tap --transport http https://mcp.taprun.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://mcp.taprun.dev/mcp
~/.codex/config.toml
[mcp_servers.tap]
url = "https://mcp.taprun.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "tap": {
      "url": "https://mcp.taprun.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "tap": {
      "type": "http",
      "url": "https://mcp.taprun.dev/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Available tools 4

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

capture
capture
Create a tap from URL × intent (local install only).
mark
mark
Resolve uncertain intent (local install only).
run
run
Execute a saved tap. On this edge demo, runs the tab-free demo taps. ref = demo/<name>.
verify
verify
Read-only substrate check (local install only).

Endpoints

URLTransportStateLatencyChecked
https://mcp.taprun.dev/mcp streamable-http needs auth 83 ms 11 min ago

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A
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A browser your AI agent remembers. Learn a site once, replay it in one call, zero model calls.

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Yab, Yet Another Browser
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Your own signed-in Mac browser for any agent: open, read and act in tabs. Local and free.

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Tap — questions

Answers built from our own checks of this server.

What can Tap do?
It exposes 4 tools, read directly from the server on our last check. Among them: capture, mark, run, verify. 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 Tap working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 106 ms. The bar chart above shows every period we have measured.
How do I connect Tap?
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. You will need your own credentials: it refuses anonymous clients.
Does Tap need an API key?
Yes. Every time we knock, Tap answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.
How fast is Tap?
It answers our handshake in 106 ms on average, which is faster than 91% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Tap?
The pypi package taprun was installed 281 times in the last week. Week over week that is -74%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Tap open source?
The code is open source: it is published under the MIT licence, written in JavaScript, 18 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at mcp.taprun.dev, which runs on its operator's own terms.