As Skyscanner is a meta flight search site, we normally refer users to our supply partner sites (airlines and online travel agents) to complete their bookings.
In cases where payment details are taken on Skyscanner, it is done through a secure third party and we do not have access to the flow of payment information to our supply partners sites. As a result, we do not have the possibility of taking payment details or allowing bookings to be made via our API.