The source code is fully available at Github:
You will need Visual Studio 2010 – 2015 and the NuGet Package Manager to edit and compile the library.
Binaries / DLL
The best method to get the SmartAPI is to install its NuGet package erminas.SmartAPI !
This way you can automatically update the SmartAPI in your Visual Studio projects and do not need to manage its dependencies on your own.
But, you can also download the compiled and ready-to-use version of erminas SmartAPI at: