You can use this data set hoster to explore the various data sets that are being exposed through this interface. The goal of this interface is to make the discovery of hosted data quick and intuitive - ideally the interface should give you all of the information necessary in order start using one of these APIs in your project quickly.
The following data sets are available from here:
Use the web interface for each of these endpoints to discover what parameters to send and what results to expect. Then take the JSON GET or POST example data to integrate these calls into your projects.