MCP Dndzgz MCP Server

MCP server for DNDzgz API - Get realtime information about public transport in Zaragoza

Local serverstdio

What is the MCP Dndzgz MCP server?

MCP Dndzgz MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. MCP server for DNDzgz API - Get realtime information about public transport in Zaragoza.

What you get

This is an MCP (Model Context Protocol) server that provides information about the Zaragoza tram system, including real-time tram arrival estimations and station information using the DNDzgz API.

What the assistant can call

Once MCP Dndzgz is connected, these are the calls the assistant has available:

  • Parameters — - station (number): ID of the tram station
  • Returns — JSON with estimated arrival times for both directions

Configuration and credentials

You will need one environment variable: GOOGLE_MAPS_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Setting it up

Installation goes through your MCP client rather than a global install: point it at @dndzgz/mcp on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.

Choosing this one

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. MCP Dndzgz's toolset — Parameters, Returns — is a fair guide to whether it matches your workflow. It is maintained by danilat; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against MCP Dndzgz's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the mcp dndzgz mcp server does with a few real requests.

Available tools

ToolWhat it does
Parameters- station (number): ID of the tram station
ReturnsJSON with estimated arrival times for both directions

How to install the MCP Dndzgz MCP server

{
  "mcpServers": {
    "dndzgz": {
      "command": "npx",
      "args": ["-y", "@dndzgz/mcp"],
      "env": {
        "GOOGLE_MAPS_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
GOOGLE_MAPS_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use MCP Dndzgz to Parameters.
  • Use MCP Dndzgz to Returns.

Frequently asked questions

It connects MCP Dndzgz to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (Parameters, Returns) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with MCP Dndzgz directly.