Understanding the usage of your publications used to be easy: if it's a book, count the sales. A magazine? Count the subscriptions. An article--count the circulation of the hosting publication. If you're a librarian, just look at how many times it was checked out. For impact, count citations. The digital universe requires new tools to measure these and the Scholarly IQ API is Scholarly's app for putting them right into your application. Scholarly IQ uses SUSHI to harvest COUNTER usage statistics.
Back in May I wrote about the race for either unified APIs or API standards to bridge the growing number of APIs in specific industries or areas. Unified APIs are created by a third party provider to bridge multiple APIs, while API standards would potentially create an industry-wide standard of how APIs should operate.