Amadeus is a travel technology company dedicated to integrate travel ecosystem technologies. The Amadeus Swift SDK adds the Travel Innovation sandbox to existing applications in order to create and test new prototypes. All GET calls require an API Key query parameter in the URL.
Popcarte is a service for consumers, taking their uploaded photo and turning it into a card of the customer's choosing, from postcards to invitations to thank you notes, to special occasions, and then mails it out worldwide. The Popcarte API lets developers integrate the service into their apps.