The Official Expedia Android Library requires Java JDK, Apache Ant, and Android SDK. Material to develop is available on Github, where users can find a sample app besides the code library. The Java library makes calls to the Expedia Affiliate Network API and the sample app uses the api-lib to make all the calls. This is the official Expedia Android library. Additional resources include guide with steps, a wiki, and the developer hub.
Google has announced that on April 10, 2018, it will cease offering the QPX Express API that provides developers access to airline pricing and shopping through a standard API. Google acquired the technology behind the QPX Express API when it completed its acquisition of ITA Software in 2011.