At Netflix, Karyon is a framework and library that essentially contains the blueprint of what it means to implement a cloud ready web service. All the other fine grained web services and applications that form our SOA graph can essentially be thought as being cloned from this basic blueprint.
Karyon is a tool in the Composable Web Service Framework category of a tech stack.
Karyon is an open source tool with 473 Github Stars and 161 Github Forks. Here’s a link to Karyon's open source repository on Github
Here’s a list of reasons why companies and developers use Karyon.