TfNSW Realtime Alerts MCP Server

A Model Context Protocol server for Transport for NSW’s (TfNSW) Realtime Alerts API. This server provides tools to access and interact with real-time transport alerts and information via Large Language Models.

Overview

This TypeScript-based MCP server implements integration with Transport for NSW’s Realtime Alerts system. It enables AI assistants to access up-to-date information about transport disruptions, planned works, and other important alerts across the NSW transport network.

Features

Resources

• List and access transport alerts via nsw-transport:// URIs
• Filter alerts by transport mode (buses, trains, ferries, etc.)
• Plain text format for easy consumption by AI assistants

Tools

• get-transport-alerts - Retrieve current transport alerts
  • Filter by transport mode
  • Returns formatted alert information including affected routes, time periods, and impact details

Prompts

• transport-disruption-summary - Generate a summary of current transport alerts
  • Includes relevant alert details as embedded resources
  • Returns structured prompt for LLM summarisation of major disruptions

Transport Modes

The following transport modes are supported:

• all - All transport modes
• buses - Sydney Metro and Outer Metro Bus services
• ferries - Sydney Ferries and Newcastle Transport ferries
• lightrail - Light Rail services
• metro - Sydney Metro
• nswtrains - NSW Trains regional trains and coaches
• regionbuses - Regional Bus services
• sydneytrains - Sydney Trains suburban and intercity network

Authentication

This server requires authentication with the TfNSW Open Data API. You will need to register for an API key at the TfNSW Open Data Hub.

Installation

To use with Claude Desktop, add the server config:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json

On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "tfnsw-realtime-alerts": {
      "command": "npx",
      "args": [
        "-y",
        "tfnsw-realtime-alerts-mcp-server"
      ],
      "env": {
        "NSW_TRANSPORT_API_KEY": "your_api_key_here"
      }
    }
  }
}

Replace "your_api_key_here" with your TfNSW API key from the TfNSW Open Data Hub.

Development

Configure your API key as an environment variable in your .env file:

NSW_TRANSPORT_API_KEY="your_api_key_here"

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Debugging

You can use the MCP Inspector for debugging, which is available as a package script:

npm run inspector

The Inspector will provide a URL to access debugging tools in your browser.

License

This project is licensed under the MIT License - see the LICENSE file for details.