agentfenster

Name: agentfenster
Author: clemensjl

by clemensjlversion 0.1.0i★ –iRuns on your computer

Registry namecom.agentfenster/agentfenster

Install

Overview

Description from the maker (original English)

Windows GUI automation on a hidden second desktop, driven from Claude Code over MCP.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "agentfenster": {
      "command": "uvx",
      "args": [
        "agentfenster-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add agentfenster -- uvx agentfenster-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "agentfenster": {
      "command": "uvx",
      "args": [
        "agentfenster-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "agentfenster": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "agentfenster-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain agentfenster.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32384 servers in this category
Published to the registry more recently than 22% of the other 32384 servers in this category
Basic checks equal to or better than 100% of the other 32384 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is agentfenster safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, 오늘냥이 (Oneul Nyangi)

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs on your computer★ 440MITUpdated 14 months ago

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

agentfenster MCP server

The agentfenster MCP server lets Claude Code and other MCP clients drive real Windows applications on a hidden second desktop inside your own session, with the same logins, cookies and VPN, while you keep your screen, mouse and keyboard. It is a local stdio server with 11 tools, from a one call task loop down to single verified clicks.

Every action is verified against the window state afterwards. A click that lands nowhere is reported as a failure, never as a silent success.

Full documentation: https://agentfenster.com/mcp

The MCP server ships with the agentfenster app, a commercial closed-source

Windows product. This repository is its public documentation and issue

tracker. It contains no product source code.

Install

Install agentfenster on Windows 10 or 11 from https://agentfenster.com. The MCP server is part of the app. Every plan starts with a 3-day trial, no card and no account required.
Register the server with Claude Code:

claude mcp add agentfenster -- agentfenster-mcp

Any MCP client that can launch a local stdio server works the same way. Then just ask:

> open the character map on the agent desktop and turn on the advanced view

The 11 tools

Tool	What it does
`list_windows`	Lists the windows this machine can drive, with title, class, minimized state and whether a picture can be captured. The starting point when you do not know the exact window title.
`desktop_task`	Runs a full GUI task in one window and returns a single paragraph: what happened, whether it worked, and if not, which step failed and why. The click loop runs inside the server, so its retries never enter your context.
`inspect_window`	Returns the capped, filtered element tree of one window as a compact list, for planning clicks yourself. Capped at 200 elements and never walked from the desktop root.
`replay`	Lists recent runs, or returns one run's step-by-step log: every plan, every action, whether it changed anything, and a link to the visual replay in the app.
`open_app`	Launches a program on the shared agent desktop and reports its first titled window. The agent desktop starts empty, so this is how anything gets onto it.
`read_desktop`	Reads the compact element tree of a window on the agent desktop, one line per interactive element, no screenshot. Plan your clicks from this.
`click`	Clicks one element, chosen by id or name from `read_desktop`, then verifies against the desktop state and states explicitly whether anything changed.
`type_text`	Types text into one element on the agent desktop, then verifies whether anything changed.
`press_key`	Presses a key or key combination such as `ctrl+s`, `enter`, `tab` or `alt+f4`, optionally focusing an element first, with verification afterwards.
`scroll`	Scrolls a window or a specific pane and reports whether the content actually moved. A list that is already at the bottom reports no effect.
`agent_windows`	Lists the windows currently open on the shared agent desktop, frontmost first, so you can pick one by a title substring.

How it works

The agent works on a second Win32 desktop inside your session. It never takes your foreground, mouse or keyboard, and you can watch it live in the app.
Tools read the UI Automation element tree instead of screenshots: one line per interactive element, capped at 200 elements per window.
The click loop of desktop_task runs inside the server on a model endpoint you configure, so its retries and intermediate steps never enter your context.
Risky actions such as delete, send, pay or install are denied by default on MCP calls and reported, instead of blocking on a confirmation nobody can answer.
agentfenster sends no telemetry. The only network traffic is the model endpoint you configure for the click loop.

Requirements


Platform	Windows 10 or 11
Transport	stdio, local
Runtime	Python 3.11 or newer, installed with the app
Prerequisite	the agentfenster app (commercial, 3-day trial)

Issues

Use the issue tracker of this repository for bug reports and questions about the MCP server: tool behaviour, install problems, MCP client compatibility. For anything about the app itself, Discord and are faster.

Rights

agentfenster is commercial closed-source software. No open-source license is granted here. The text in this repository is published so that MCP users and directories can read, quote and link to it. Use of the agentfenster app itself is governed by the terms at https://agentfenster.com/terms.

agentfenster

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

오늘냥이 (Oneul Nyangi)

README from the maker

agentfenster MCP server

Install

The 11 tools

How it works

Requirements

Links

Issues

Rights