Having a directory with over 5,000 APIs and 6,000 mashups gives us some insight into what developers are interested in building and what their go to tools are. Today we're taking a look at the most common categories of APIs as used in our mashup directory. It's no surprise to see mapping claim the top spot with more than double the number of APIs used compared to the second most popular category, social. Below is a list of the top 10 API categories along with the most popular APIs within each.
Our API directory now includes 79 file sharing APIs. The newest is the Seafile API. The most popular, in terms of mashups, is the 4Shared API. We list one 4Shared mashup. Below you'll find some more stats from the directory, including the entire list of file sharing APIs.