The official MercadoLibre Ruby SDK by MercadoLibre calls the MercadoLibre RESTful API which provides tools to create an online store. This SDK is used to handle the OAuth WebServer flow, and there is no JSON parsing.
They say it’s the Age of the Consumer because people have more access to a lot of information about any given product they buy or vendor they do business with. But for all that information one thing most of us don’t have much control over is the rewards programs their credit cards generated points towards every time they buy something.
Revel Systems API makes it possible to run a cash register, a restaurant and a mobile point-of-sale system with an iPad as the center of the user interface. Check out what Revel has to say about the API on their website.