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Skeuomorph is a library for transforming different schemas in Scala. It provides schema definitions as non-recursive ADTs, and transformations & optimizations via recursion schemes.

This library is primarily intended to be used at mu, but it's completely independent from it, so anybody can use it.

Skeuomorph depends heavily on cats and droste.

More information can be found at the microsite.


For installing this library, add the following line to your build.sbt file:

libraryDependencies += "io.higherkindness" %% "skeuomorph" % "0.2.2"

The full documentation is available at the skeuomorph site.


The following files api-with-examples.yaml, petstore-expanded.yaml, callback-example.yaml, petstore.yaml, link-example.yaml and uspto.yaml inside the folder (test/resources/openapi/yaml) were copied from OpenAPI Specification project under the terms of the licence Apache License Version 2.0, January 2004.

Skeuomorph in the wild

If you wish to add your library here please consider a PR to include it in the list below.

Name Description
mu purely functional library for building RPC endpoint based services with support for RPC and HTTP/2


skeuomorph is designed and developed by 47 Degrees Open Source

Copyright (C) 2018-2023 47 Degrees Open Source