McNeel 

RhinoCommon by: McNeel
RhinoCommon SDK for Rhino WIP for Windows
  • 8,578 total downloads
  • last updated 6/5/2018
  • Latest version: 6.5.18155.13161
  • rhino3d
RhinoCommon is the cross-platform .NET plugin SDK for Rhino
Grasshopper by: McNeel
Grasshopper SDK for Rhino WIP for Windows
  • 6,913 total downloads
  • last updated 6/5/2018
  • Latest version: 6.5.18155.13161
  • rhino3d
Grasshopper is a .NET (RhinoCommon) plugin for Rhino 5 for Windows and later.
ThreeLib by: McNeel
  • 4,434 total downloads
  • last updated 11/10/2017
  • Latest version: 1.0.208
.net Class Library for creating Three.js compatible objects.
Rhino3dmIO.Desktop by: McNeel
Rhino3dmIO toolkit for Rhino WIP for Windows
  • 3,465 total downloads
  • last updated 6/5/2018
  • Latest version: 6.5.18155.13161
  • rhino3d
Rhino3dmIO is a .NET toolkit for reading and writing 3dm files
Rhino3dmIO.iOS by: McNeel
Rhino3dmIO toolkit for Rhino WIP (iOS)
  • 3,034 total downloads
  • last updated 6/5/2018
  • Latest version: 6.5.18155.13161
  • rhino3d
Rhino3dmIO is a .NET toolkit for reading and writing 3dm files
RhinoWindows by: McNeel
  • 2,169 total downloads
  • last updated 6/5/2018
  • Latest version: 6.5.18155.13161
RhinoWindows and Eto.Wpf
Rhino3dmIO.Android by: McNeel
Rhino3dmIO toolkit for Rhino WIP (Android)
  • 1,453 total downloads
  • last updated 3/7/2018
  • Latest version: 6.2.18065.11031
  • rhino3d
Rhino3dmIO is a .NET toolkit for reading and writing 3dm files