As developers work to modernize applications, they need foundational tools that are simple and scalable. gRPC is a high-performance, open-source, universal RPC framework originally developed at Google that developers are adopting in tremendous numbers, helping them connect services more easily and reliably. Paired with Kotlin, the second most popular JVM-based programming language in the world, developers can build everything from mobile apps to cloud microservices. To help, we’ve open-sourced gRPC Kotlin for the JVM, allowing you to use gRPC with your Kotlin projects.