Our API directory now includes 31 CMS APIs. The newest is the Contentful API. The most popular, in terms of mashups, is the WordPress.com API. We list 3 WordPress.com mashups. Below you'll find some more stats from the directory, including the entire list of CMS APIs.
Synq has hit the market with a video API designed to bring video capabilities to apps. Unlike many existing video platforms, Synq is not a standalone video management system that brings apps into its ecosystem. Synq hopes that this developer-first mindset will set it apart from other video services.