APIs are a hot topic, energetically debated by business people, IT managers, and developers alike. Most of the excitement in the public space is about open public APIs. To some degree, not having a public API today is like not having a website in the late 1990s. Yet for many enterprises, public APIs are really the least of their business concerns. More important concerns include building omni-channel solutions, innovating faster than the competition, becoming a mobile enterprise, or operating in a hybrid cloud environment.