agentfenster MCP server
com.agentfenster/agentfenster·v0.1.0Windows GUI automation on a hidden second desktop, driven from Claude Code over MCP.
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If you have run it, two minutes of your experience saves the next person an afternoon.
agentfenster tools
No tool declarations could be read from the package source. They show once the server is installed.
Public scan report
scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it
- Code scan4 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 46 days ago12/15
- Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10
How agentfenster compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 86/100
- higher than 72% of 48,255 servers
Install agentfenster in Claude Code, Cursor or VS Code
claude mcp add agentfenster -- uvx agentfenster-mcp
What the publisher says
From the agentfenster repository's README, as published. We do not edit it. Read it on GitHub
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:
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
The MCP server is part of the app. Every plan starts with a 3-day trial, no card and no account required.
- Install agentfenster on Windows 10 or 11 from .
- Register the server with Claude Code:
claude mcp add agentfenster -- agentfenster-mcpAny 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 viewThe 11 tools
How it works
your foreground, mouse or keyboard, and you can watch it live in the app.
- The agent works on a second Win32 desktop inside your session. It never takes
interactive element, capped at 200 elements per window.
- Tools read the UI Automation element tree instead of screenshots: one line per
you configure, so its retries and intermediate steps never enter your context.
- The click loop of desktop_task runs inside the server on a model endpoint
MCP calls and reported, instead of blocking on a confirmation nobody can answer.
- Risky actions such as delete, send, pay or install are denied by default on
endpoint you configure for the click loop.
- agentfenster sends no telemetry. The only network traffic is the model
Requirements
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
agentfenster: common questions
- Is agentfenster MCP server safe?
- Yes, by our scan: it is graded A (86/100). Read the agentfenster safety report
- How do I install agentfenster?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does agentfenster need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is agentfenster maintained?
- The last commit was 88 days ago (2026-08-08). The latest release is v0.1.0.