API for hotel booking

Question

API

Friends, there is a task to implement the search and booking of hotels on our side using some third-party API. Please tell me a hotel provider with a good base of hotels and with whom it is easy to communicate.
For some reason, Booking.com does not respond to requests at all (perhaps I am writing in the wrong place?).

Answer 1

Expedia developer.ean.com/

Answer 2

At the last place of work, www.acase.ru was used for booking in Russia. But our developers constantly spat. Maybe it's better now.

Answer 3

worked with contentinn , hellishly slow.
and Booking.com does not provide an API, only a referral program

Answer 4

Ostrovok.ru also has an API