The Shippo Node.js SDK by Shippo interacts with the API to access shipping data. In the same interface, developers can connect USPS, UPS, and FedEx. The main purpose of the code available aims to demonstrate how to generate a label to print, that includes a purchase from Mr. Hippo located at the zoo with a give address, phone number, and email account.
InviteBox, social referral program, allows merchants, bloggers, developers (and anybody else with a web presence) to refer friends and customers to recommended products. Users can take advantage of pre-determined referral offers (e.g. coupons, promo codes, free products, cash incentives, etc.) or create custom incentive programs. InviteBox offers all the needed moving parts from creating the referral program to implementation, and the analytics to measure success. Users can simply insert a widget into a website or utilize the Reward Callback API.
What do you get when you use APIs to mashup retail shopping, auctions, analytics, reviews and coupons? For the VC-funded startup Mpire, you get a very useful set of shopping tools, what they call a universal shopping experience.