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mcp-untun

mcp-untun

Public
minte-app/untun-mcp

Create and manage secure public tunnels to local servers effortlessly through natural language commands with an MCP server that simplifies tunnel setup, monitoring, and control without complex CLI usage.

javascript
0 tools
May 30, 2025
Updated Jun 4, 2025

Supercharge Your AI with mcp-untun

MCP Server

Unlock the full potential of mcp-untun through LangDB's AI Gateway. Get enterprise-grade security, analytics, and seamless integration with zero configuration.

Unified API Access
Complete Tracing
Instant Setup
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Free tier available • No credit card required

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Untun MCP - Secure Tunnels for Local Servers

❌ Without Untun MCP

Local development can be frustrating when you need to expose your server to the internet:

  • ❌ Complex tunnel setup and command-line arguments
  • ❌ Hard to track which tunnels are running across different terminal sessions
  • ❌ No easy way to manage multiple tunnels from a single interface

✅ With Untun MCP

Untun MCP creates and manages secure tunnels directly from your AI assistant:

  • 1️⃣ Simply tell your AI assistant to create a tunnel
  • 2️⃣ Get a public URL within seconds
  • 3️⃣ Manage all your tunnels with simple natural language commands

No complex CLI commands to remember. No more lost tunnels. Easy management of multiple tunnels.

⚠️ Disclaimer

This project uses the untun package from npm but is not officially affiliated with, endorsed by, or connected to Cloudflare or UnJS. This is an independent, community-developed MCP wrapper around the untun CLI tool.

🛠️ Getting Started

Requirements

  • Node.js >= v18.0.0
  • MCP-compatible client (Cursor, Claude Desktop, VS Code, etc.)
  • untun CLI tool (installed automatically as needed)

Install in Cursor

Go to: Settings -> Cursor Settings -> MCP -> Add new global MCP server

Paste the following configuration into your Cursor ~/.cursor/mcp.json file:

{ "mcpServers": { "untun": { "command": "npx", "args": ["-y", "@minte-app/untun-mcp@latest"] } } }

Install in VS Code

Install in VS Code (npx)

Add this to your VS Code MCP config file:

{ "servers": { "Untun": { "type": "stdio", "command": "npx", "args": ["-y", "@minte-app/untun-mcp@latest"] } } }

Install in Claude Desktop

Add this to your Claude Desktop claude_desktop_config.json file:

{ "mcpServers": { "Untun": { "command": "npx", "args": ["-y", "@minte-app/untun-mcp@latest"] } } }

🔨 How to Use

Ask your AI assistant to create a tunnel with natural language:

Create a tunnel to my localhost:3000 server

Check your running tunnels:

Show me all my active tunnels

Stop a specific tunnel:

Stop the tunnel to localhost:3000

Available Tools

  • start_tunnel: Creates a secure tunnel from a public internet address to your local server

    • url (required): The local URL to expose (e.g., http://localhost:3000)
    • name (optional): Custom name for the tunnel
  • stop_tunnel: Stops a running tunnel or all local tunnels

    • name (optional): Name of a specific tunnel to stop
  • list_tunnels: Lists all active tunnels including their status and details

Troubleshooting

Tunnel Not Starting

If your tunnel doesn't start, try these steps:

  1. Make sure your local server is running
  2. Check if there's already a tunnel running for that port
  3. Use list_tunnels to check the status of all tunnels

Remote Tunnels

Tunnels are tracked by hostname. If you see "remote" tunnels that can't be stopped, they are likely running on another machine. You'll need to stop them from the original machine.

Development

Clone the project and install dependencies:

npm install

Build:

npm run build

License

MIT

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