Travel agent

A simple proof-of-concept MCP server for Amadeus enabling LLM-based agents to use Amadeus as a tool. The server provides tools for LLMs to directly query live flight booking information around the world, including:

• Cheapest tickets for a particular journey.
• All destinations from a particular airport.
• All routes for an airline.

What is MCP?

Model Context Protocol (MCP) is a client-server protocol for LLM agents interacting with tools, resources and prompts. You can think of it as a HTTP for agents. A MCP server hosts a bunch of tools that the agent can use to carry out tasks for the user.

What is Amadeus?

Amadeus is a Global distribution system (GDS), essentially a booking and reservation system used by a large amount of travel agents around the world. It allows querying flight and booking information that would only be available directly to travel agencies and other resellers.

Structure

- agent
--- resources   <- static data
--- services    <- service layer for tool logic
--- tools       <- actual tools provided to llm
server.py       <- main server endpoint

Installation

This project relies on the Python uv project manager uv which enables easy dependency manage and distribution. Once you have uv installed you can create a virtual environment with all of the dependencies included to run the project.

uv install

source .venv/bin/activate

Once installed you will need to provide Amadeus-for-develops credentials in a .env file in the project root. The Amadeus developer pages shows you how to acquire such a key. Once you have the key and secret, but them in a .env file like so:

AMADEUS_ENV="test"
AMADEUS_KEY=<YOUR-KEY>
AMADEUS_SECRET=<YOUR-SECRET>

Running

When the setup is completed you can start the FastMCP server

python server.py

It is then ready to accept requests from an LLM agent.

Connecting to Claude Desktop

Claude Desktop comes with built-in support for interacting with MCP servers. To enable it you need to open Claude Desktop developer panel and edit your claude_desktop_config.json to start the server.

{
  "mcpServers": {
    "AmadeusServer": {
      "command": "<PATH-TO-PROJECT>/.venv/bin/python",
      "args": [
        "<PATH-TO-PROJECT>/server.py"
      ]
    }
  }
}

Then restart Claude Desktop start a new conversation. Before writing select the AmadeusServer from the configuration panel below the text input.

Claude should now discover your tools and use them to solve your tasks.