In this article, we compare Tapir with endpoints4s. We highlight the differences by providing examples and explanations for the most common features you would like to have in your REST API. Both libraries only require you to describe the communication protocol in Scala. Once the communication protocol is written, you need to wire it with a specific HTTP Server (such as  Akka HTTP) and/or body parsing (e.g. Circe). At the end, the library produces clients, documentation, and servers for you with implementations of your choices. 

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