tRPC vs oRPC: Which is better for your next TypeScript project, and why?

tRPC and oRPC are two TypeScript-based Remote Procedure Call (RPC) frameworks offering unique approaches to building type-safe APIs. tRPC is favored for its simplicity, speed, and seamless integration within TypeScript environments, providing end-to-end type safety without the need for schema generation, making it ideal for internal applications managed by a single team. It excels in environments where both backend and frontend are tightly coupled and managed within the same codebase. Conversely, oRPC extends tRPC’s capabilities by incorporating OpenAPI support, enhancing interoperability across different languages and platforms, thus making it suitable for projects requiring external integrations or documentation through tools like Swagger. oRPC supports both code-first and contract-first workflows, allowing for more flexibility and scalability, particularly for teams working with diverse technologies. Ultimately, the choice between tRPC and oRPC hinges on the specific needs of the project, such as the desired level of interoperability, the development workflow, and the target user base.