mcp-untun

start_tunnel

Creates a secure tunnel to expose a local server publicly. Connect your local URL to a public address for external access and manage tunnels with custom names for convenience.

Instructions

Creates a secure tunnel from a public internet address to your local server.

This tool will:

Start an untun tunnel process connecting to your specified local URL
Return a public URL that can be used to access your local server
Allow you to name your tunnel for easier management

After starting a tunnel, wait a few seconds and use 'list_tunnels' to check its status and get the public URL.

Input Schema

Name	Required	Description	Default
`name`	No	Optional custom name for the tunnel. If not provided, 'default' will be used.
`url`	Yes	The local URL to expose (e.g., http://localhost:3000)

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "name": {
      "description": "Optional custom name for the tunnel. If not provided, 'default' will be used.",
      "type": "string"
    },
    "url": {
      "description": "The local URL to expose (e.g., http://localhost:3000)",
      "format": "uri",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "type": "object"
}

Install Server

HTTP connection URL

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