While the furor around Facebook's Cambridge Analytica scandal have died down, the world's largest social network continues to make changes to its APIs "to better protect people’s information". Today, it announced that a number of its APIs will only be accessible to apps that have been reviewed.
The most popular Twitter ranking service, Klout, has used its API platform to boost its growth. The company, which is also expanding outside of Twitter, saw calls to its Klout API more than triple in just a few months. The company is now clearly in the API billionaires club.