mcp-deutsche-bahn

An MCP server that gives any MCP-compatible AI assistant (Claude Desktop, Claude Code, Cursor, etc.) live access to Deutsche Bahn data: journey planning, real-time delays, disruptions, construction works, strikes, and alternative routes.

_{Not affiliated with or endorsed by Deutsche Bahn AG. Logo used for source identification only.}

What it does

Six tools, available to your LLM:

Quickstart (1 minute, no clone)

You need uv (one-line install):

curl -LsSf https://astral.sh/uv/install.sh | sh

That's the only prereq. The MCP server itself installs on demand — pick your client:

Claude Desktop

Open ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows). Add:

{
  "mcpServers": {
    "deutsche-bahn": {
      "command": "uvx",
      "args": ["mcp-deutsche-bahn"]
    }
  }
}

Restart Claude Desktop (⌘Q + reopen — closing the window isn't enough). A plug icon appears in the input bar → click it → confirm deutsche-bahn lists 6 tools.

Claude Code

claude mcp add deutsche-bahn -- uvx mcp-deutsche-bahn

Cursor / other MCP clients

Same shape — command: uvx, args: ["mcp-deutsche-bahn"].

Try it

Ask your assistant:

What are my options getting from Berlin Hbf to Munich tomorrow at 8am, and is there any construction on that route?

It will call search_journeys and get_disruptions and stitch a human answer.

Optional: standalone CLI agent

If you want a plain-English REPL without Claude Desktop, the package ships an anthropic-powered front-end that drives the MCP server directly:

export ANTHROPIC_API_KEY=sk-ant-...
uvx --from mcp-deutsche-bahn mcp-deutsche-bahn-agent                              # interactive
uvx --from mcp-deutsche-bahn mcp-deutsche-bahn-agent "next trains out of Hamburg" # one-shot

Local development

git clone https://github.com/heykay/mcp-deutsche-bahn.git
cd mcp-deutsche-bahn
uv sync --extra dev
uv run pytest -m live   # smoke tests, hit the real API
uv run ruff check .

Run the server in inspector mode to poke individual tools without an MCP client:

npx @modelcontextprotocol/inspector uv run mcp-deutsche-bahn

To point Claude Desktop at your local checkout (instead of the published package), use uv --directory /path/to/clone run mcp-deutsche-bahn as the command.

Roadmap

• v0.2: hosted/remote MCP variant (HTTP + SSE) for non-CLI users
• v0.2: richer strike signal — wire to a real news API
• v0.3: ticket-price comparison via DB API Marketplace

Contributing

PRs welcome. File issues with the query that broke and the JSON the tool returned.

License

MIT — see LICENSE.