52 Useful Machine Learning & Prediction APIs, updated

As the Artificial intelligence & Machine learning based applications evolve, we see numerous mash ups of application program interfaces (APIs) to experiment with. API is a set of routines, protocols, and tools for building software applications. In this post, we removed from the list of 2015 discontinued APIs. We also added new APIs that recently come from giant providers such as IBM, Google, and Microsoft. Within each group of applications, we list in alphabetical order.