This document discusses different patterns for adopting APIs within organizations and with external partners. It outlines four main adoption patterns: internal innovation, partner APIs, mobile APIs, and external innovation. For each pattern, it covers the types of APIs and business relationships involved, as well as challenges around onboarding, managing versions, security, and monetization. It also discusses how APIs can support adoption for new technologies like the Internet of Things. Finally, it introduces the API lifecycle of plan, build, run, share, and analyze and provides an overview of capabilities for an API platform.