TechTarget today has an interview with API development and management expert, Mike Gionfriddo, who is CTO at Blackhawk Network in Pleasanton, Calif. Mike's team enables GiftCardMall and PayPower, two brands familiar to anyone who has ever set foot in a Safeway or Publix supermarket. He is also the original author of the Jam API, now known as Java Management Extensions, or JMX.
Mike provides a great description of the benefits of an API Server as a control point for API traffic:
Using an API server as a control point gives us the flexibility to allow our business teams to say how they want to use digital card services, charge for them and create interesting models. An API server -- in our case, Vordel API Server -- gives us that flexibility. Again, for compliance, it gives us a nice way to have that control in a single point and not spread throughout the application tier. http://searchsoa.techtarget.com/news/2240186033/API-management-servers-enable-mobile-Web-gift-services-strategy