Official Windows Azure Media Services Nuget package is here: Media Services Nuget Page. And you could search it by windowsazure.mediaservices. NuGet is a Visual Studio extension that makes it easy to add, remove, and update libraries and tools in Visual Studio projects that use the .NET Framework. If you have no idea what Nuget is, go and check out this overview.
Media services .NET SDK works with .NET 4.0 framework and it includes the following three components: Read More Here