Our API directory now includes 56 billing APIs. The newest is the Merchee API. The most popular, in terms of mashups, is the Stripe API. We list 5 Stripe mashups. Below you'll find some more stats from the directory, including the entire list of billing APIs.
The LemonStand API provides the ability to integrate its ecommerce tools into almost any website, and is aimed at the midsize merchant market. Built with Php, MySQL and Ajax, it is completely customizable using HTML and CSS. Updates are achieved through a single click. Lemonstand promises an upcoming App store for third party wares.
The Amazon Web Services team has announced a new "Requester Pays" pricing model for their Simple Storage Service (S3). Amazon's S3 service, which provides scalable access to Amazon's online data storage infrastructure, enables customers to rapidly scale their platform using a cost effective pay-as-you-go model. Now, the new S3 Requester Pays Model gives S3 customers the built-in ability to charge their users for specific data transfers. Furthermore, Amazon takes care of the billing for the requested data, eliminating excess accounting overhead for the data providers. From their announcement: