MCP SERVEROpen a public URL to a port on your machine, and keep track of the tunnels you have running.
LABSCO SUMMARY
The tunnel itself is untun's job; what this adds is bookkeeping - a list of what is currently running and the ability to stop one by name. That is the part that actually goes wrong when tunnels get started by hand across several sessions.
An MCP wrapper around the untun CLI. It starts a tunnel from a public address to a local server, lists what is running, and stops one or all of them.
Node, and the untun CLI, which the server installs as needed. It is an independent community wrapper around the untun package, not affiliated with Cloudflare or UnJS.
One command — npx -y @minte-app/untun-mcp@latest
USE CASES
Ask for a tunnel to the port, get the public URL back within seconds, and confirm it is up.
Expose the local endpoint so the provider can reach it, and check the tunnel is still alive when the callback does not arrive.
List what is running across every session, and stop the one still pointing at an old port.
Stop all local tunnels in one call, then confirm nothing is left exposed.
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
list_tunnelsLists all active tunnels including their status and details.
This tool will:
Use this tool to check the status of your tunnels and get their public URLs.
start_tunnelCreates a secure tunnel from a public internet address to your local server.
This tool will:
After starting a tunnel, wait a few seconds and use 'list_tunnels' to check its status and get the public URL.
stop_tunnelStops a running tunnel or all local tunnels.
This tool will:
After stopping tunnels, you can use 'list_tunnels' to confirm they've been terminated.
BEFORE YOU INSTALL
3 tools when we connected.
CONTEXT COST
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Add the block to your client, or run the command directly.
{
"mcpServers": {
"untun-mcp": {
"command": "npx",
"args": [
"-y",
"@minte-app/untun-mcp@latest"
]
}
}
}npx -y @minte-app/untun-mcp@latestMCP servers
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