true_cost

The true_cost tool is provided by Airfare Brain. Install that server in your AI client and the assistant can call it directly.

Servers exposing true_cost

• Airfare BrainB · 73HTTP

  From the publisher:The true cost of a flight on one airline. Pass `fare` (the total for the whole party, from a flight-search tool or the person) to get fare + extras; without it you get the extras alone. Extras = what the person chooses (cabin bag, checked bag by kg, seat, priority, infants) for their party and trip, as the range the airline publishes. Also lists what costs more if left until the airport, unchosen

  Parameter	Type	Description
  airline*	string	Name or IATA code
  passengers	integer	People aged 2+ (default 1)
  infants	integer	Under-2s on a lap
  trip	string	one_way (default) or return: return counts each extra on both flights
  currency	string	Currency of the answer: EUR (default) or GBP, as the airline publishes it
  fare	number	Total fare already found for the whole party, if known
  cabin_bag	boolean	A large cabin bag for the overhead locker
  checked_bag_kg	integer	Checked bag(s) per person of this weight allowance
  hold_bags	integer	Checked bags per person (default 1); the 2nd bag often costs more
  seat	string	extra = legroom / front
  priority	boolean	Priority boarding

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