The Nervatura Client is part of the Nervatura Framework and can be used freely under the scope of LGPLv3 License.
The Nervatura Client web component is included in the nervatura package, it does not need to be installed separately. This is a special version that allows you to use different Nervatura servers. Recommended for testing and development.
Examples: https://github.com/nervatura/nervatura-examples
Please see more the Nervatura Docs
More info see http://nervatura.com.