The Ecwid Ruby SDK by David Biehl is available in beta stage to interact with the API. eCommerce features can be integrated in a mobile or web application, using installation, example, and configuration as resources.
Defensio, the anti-spam service, offers an API that can be integrated into blogs and web sites to fight spam comments and other unwanted spam (details at our Defension API profile). The service appears to be run by a small team, and is similar in purpose to Akismet, the much larger spam filtering service from Automattic (which powers WordPress.com), who also offer an anti-spam API.
Some of the best experiences in my life are trips that I took with my closest friends. These memories could be even better if I had not been forced to wait so long to get paid back after fronting the hotel bill. Sometimes friends have different ideas on what is an acceptable timeline for recompense. Now, thanks to Splitable, we can all avoid setting ourselves up for a let down by leveling the playing field. Splitable is an easy-to-integrate payment solution that lets customers split the cost of products and services with their friends. The simple online interface provides a forum for discussing plans and then facilitates payment. The company offers the Splitable API that gives store owners the ability to allow their customers to split the cost of a product or service.