ravinahp/flights-mcp — reverse-engineered prompt

Build me a Python MCP server that lets Claude search for flights through the Duffel API.

I want to be able to ask normal travel questions like “find me a round trip from LAX to London next month” or “compare a few dates for a multi city trip from New York to Paris to Rome and back”, and have the tool return clear flight options with prices, airlines, times, stops, cabin class, passenger count, and offer details. It should support one way, round trip, and multi city searches, plus a way to look up the full details for a specific offer.

Please make it read only, no booking or charging, and keep the Duffel API key local in an environment variable. Include setup instructions for Claude Desktop, support running it with uv, and add basic tests. A Dockerfile is fine too. Make the responses useful for comparing options in chat, especially when checking flexible dates or complicated itineraries.