We are almost finishing integrating duffel flight API, and will soon begin integrating the stays API as soon as our request for access is granted. The documentation is good, only that duffel as stopped replying to emails.Having spent weeks writing more than 3500 lines of code building on top of duffel and then you just suddenly stop replying to emails, it's very frustrating. Why?
I thought I knew what it took to build a flight booking tool until I got to the specifics. Duffel is by far the easiest way to connect to get into selling travel. The developer documents by themselves show how much they care about detail.