Version Matrix

guardrail Build Status | codecov | maven central | Join the chat at

guardrail is a code generation tool, capable of reading from OpenAPI/Swagger specification files and generating Scala source code, primarily targeting the akka-http and http4s web frameworks, using circe for JSON encoding/decoding.

New to guardrail?

Check out the docs!

Compatible library versions are listed in

Interested in contributing? provides an overview of how the project is structured, expectations, and information around writing new integration tests. The issue tracker also has tags for help wanted and good first issue.

Build tool plugins



We used to have a list of contributors here, but github's Contributors page is much more accurate. Thanks to those who contributed before the project was open sourced!