Amadeus iHotelier BE API
Family of OAuth 2.0 secured REST APIs for the iHotelier Booking Engine 4.0 (CRS). Enables B2C / web-client applications to search availability, hold and create reservations (including group reservations), and build guest-facing hotel booking experiences. Endpoints follow a /book/v1/hotel/{hotelCode}/... URI pattern (e.g. POST /book/v1/hotel/{hotelCode}/reservation). Documentation and interactive testing require developer-portal registration.