DealAngel, hotel find engine, has launched a beta version of the DealAngel API. Traditionally, DealAngel provided a user-facing platform that allowed individuals to use its engine to hunt the best hotel rates. With the API, DealAngel hopes to serve as the underlying knowledge that drives 3rd party sites and apps that provide hotel search services.
Our API directory now includes 44 booking APIs. The newest is the WuBook Wired API. The most popular, in terms of mashups, is the Rezgo API. We list 5 Rezgo mashups. Below you'll find some more stats from the directory, including the entire list of booking APIs.