This document discusses how API management can help control and secure IoT APIs. It begins with an overview of APIs and their importance for digital transformation and business success. It then discusses how API management provides key benefits like security, analytics, developer portals, and monetization. Several application examples are also presented, such as smart city projects in Songdo and Barcelona that rely heavily on APIs and sensor data. The document concludes by emphasizing that API management is the most efficient way to consume or publish services and data through APIs at scale.