Use whatevertrips in Claude, ChatGPT and other AI assistants

Whatevertrips runs a public MCP server. An AI assistant can use it to search cheap one-way flights, plan trips through 2 or more cities, and save a trip as a page you can share and book. It is free and needs no account.

Server URL

Transport: Streamable HTTP. Authentication: none.

https://api.whatevertrips.com/mcp

Add it to Claude

  1. Open Settings, then Connectors.
  2. Click Add custom connector.
  3. Enter the name whatevertrips and the server URL above. Choose No sign-in.
  4. In a chat, turn on the whatevertrips connector and ask for flights or a trip.

In Claude Code, run: claude mcp add --transport http whatevertrips https://api.whatevertrips.com/mcp

Add it to ChatGPT

  1. Turn on developer mode in Settings, then Apps (it needs a plan that supports it).
  2. Create an app with the server URL above and no authentication.
  3. In a chat, pick the whatevertrips app and ask for flights or a trip.

Tools

search_cities

Finds the city names we have flights for. The other tools need the exact name.

  • query - start of a city name, for example Lond or Sev

search_flights

Cheapest one-way flights from one city to another city, or to anywhere.

  • from - departure city
  • to - arrival city, optional
  • date_from - earliest departure date (YYYY-MM-DD)
  • date_to - latest departure date, optional
  • limit - up to 50 flights, default 20

plan_trips

Builds round trips through several cities and sorts them by total price.

  • from - home city
  • date_from, date_to - the travel window
  • legs - number of flights before the flight home, 1 to 7
  • min_nights, max_nights - nights in each city, default 2 to 3
  • include_cities, exclude_cities - only visit these cities, or never visit them
  • include_countries, exclude_countries - the same with ISO country codes
  • limit - up to 10 trips, default 5

save_trip

Saves a trip from flight ids that the other tools returned. Returns a public trip page and a booking link on Kiwi.com.

  • flight_ids - 1 to 8 flight ids

Example prompts

  • Find the cheapest flights from London to Krakow in the first week of next month.
  • Plan a trip from Berlin through 2 cities in Italy or Spain in May, with 2 to 3 nights in each city.
  • Where can I fly from Madrid for under 30 euros next weekend?
  • Save the cheapest trip and give me the link.

Limits

  • Prices come from the airline websites and are cached for a few hours. The final price is on the booking site.
  • Flights only: no hotels, trains or packages.
  • Mostly low-cost airlines in Europe.
  • 60 requests per minute per IP address.
  • Saved trips are public to anyone who has the link.

How we handle data: see the privacy policy.