For more than a decade, web APIs have replaced the previous generation of web services. Throughout this period of growth, most APIs have been restricted to request-response over HTTP. We are now seeing a move back to eventing with the popularity of webhooks. Additionally, streaming is becoming another option for connecting services, apps, and devices. In this talk, we will look at the opportunities that event-based APIs and streaming offer and how our software architecture is evolving to handle these new styles of API interaction.