The HomeAway Ruby SDK by HomeAway is a gem that allows developers to access the HomeAway API's functions from their Ruby applications. Usage examples are included in the documentation.
Getting from A to B in the most cost effective way can be difficult if you're just guessing as you go. TaxiMe is an application that provides users with cost estimates for cab fares and trip information for major cities in the U.S. and Canada. This means users can plan their journeys beforehand and know exactly what the costs involved will amount to. TaxiMe's API allows access to cab contacts and rates for these different cities.
Leading travel companies are broadening their distribution channels by building platforms that enable partners and customers to connect and access their inventory and sales systems via application programming interfaces. APIs are the tools powering many of today’s mobile and Web applications.