Evolute Tools for Grasshopper-Developer

I have read some topics about using D.Loft for Grasshopper. After seeing videos and some documentation from the website I have2 questions. Does ET includes grasshopper components?. Does ET can be used within Grasshopper through a C#, VB or PY scripting component? I just want to realize how my workflow should be modified to include Evolute Tools as I´m handling GH + C#. Thanks - Juan.