We are using TravelAPI API which is simple, intelligent & seamless.
One of the clients who own B2B Flight Portal
We switched over our system to Hotels API from TravelAPI after having a bad experience with another service provider. We found their terms of service & inventory quality excellent & transparent.
B2C Hotels Portal operating out of middle-east
TravelAPI API aggregates all major service providers with the best price. This is what client looks for.
One of the client who uses multiple flights API for travel portal