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MCP Tunnel

@leomercier

Repository

Basic information

Category

Other

Transports

stdio

Author

leomercier

About MCP Tunnel

MCP server for accessing VM command line with web tunneling

MCP Tunnel config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-tunnel": {
      "command": "npx",
      "args": [
        "mcp-cli"
      ]
    }
  }
}

MCP Tunnel tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is MCP Tunnel?

MCP Tunnel is a simple MCP server that allows accessing the command line of a VM machine. When started, it tunnels the host to the web so the VM can be accessed via the Model Context Protocol.

How to use MCP Tunnel?

Install globally with npm install -g mcp-cli and run mcp-cli, or run directly with npx mcp-cli. After starting, use the MCP tools execute_command and start_tunnel to send commands and create web tunnels. Optionally pass --no-tunnel to disable automatic tunneling.

Key features of MCP Tunnel

  • Execute shell commands on a VM through MCP
  • Web-based terminal interface for VM interaction
  • Automatic tunneling for remote accessibility
  • WebSocket-based real‑time communication

Use cases of MCP Tunnel

  • Remotely run shell commands on a virtual machine
  • Access a VM’s command line from any device with a web browser
  • Develop and test scripts via a web terminal interface
  • Expose a local VM temporarily over the internet

Frequently asked questions

1

What are the prerequisites for MCP Tunnel?

Node.js version 18 or newer is required.

2

How can I start MCP Tunnel without automatic tunneling?

Add the `--no-tunnel` flag when starting, e.g., `mcp-cli --no-tunnel` or `npm start -- --no-tunnel`.

3

What MCP tools are available?

Two tools: `execute_command` (runs a shell command) and `start_tunnel` (creates a web tunnel with optional port and subdomain parameters).

4

How do I access the web interface?

After starting the tunnel, visit the URL provided by the tunnel service; the interface allows executing commands and seeing output in real time.

5

Is authentication or transport security mentioned?

The README does not specify authentication or transport security; it advises using strong auth mechanisms and limiting commands before exposing the tunnel.

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