The Invisiblehand API brings this cleverly named browser add-on focused on finding the lowest price for something that the user is shopping for to a wider audience. Constantly updating prices on millions of products from books to air fares, Invisiblehand stands out for its ability to learn about new products it hasn't seen before. The documentation indicates this is a RESTful API with JSON responses.
Six APIs have been added to the ProgrammableWeb directory in categories such as Application Development, Payments, and Home Automation. Included in the new additions is Heroku Connect API from Salesforce. Here, we summarize the new additions and how they can assist developers.