The official Payeezy Android SDK aims to offer quick integration from FirstData into Android applications. Contains minimum technical requirements such as OS 4.0 (ice cream) and higher, an emulator, latest SDK version, a project to compile, latest version of Android studio, and Java JRE. It also recommends to have ready developer registration, API Key, and SDK download to get started with the project.
When Zappos released its API, there was a strange restriction: no mobile applications. While sometimes lawyers write terms that aren't formally enforced, Zappos made it clear on its API mailing list that it was serious. Soon, the restriction will be removed and mobile applications will be allowed without written approval.
Ever tried to sell something on the Internet and hoped that the process was simpler than what it currently is? What if selling an item on the Internet was as simple as sharing the item for sale with your friends on the social web? Gumroad, a San Francisco based startup has adopted that philosophy and wants to take the pain out of selling an item on the web and it also provides the Gumroad API for its core features.