Are you thinking about building your next API project and find yourself having stress with dicovering the best technology to do so? Let’s tackle this and dive into the most commonly used techniques for building APIs in the context of ASP.NET. In this talk, I will explain, showcase, and compare REST, gRPC, and GraphQL. So, join this session to see how they work side by side. But, maybe, more importantly, get the answer to the most interesting question: When should I use what and why?