<PackageReference Include="Grpc.Core.Api" Version="2.70.0" />

Grpc.Core.VersionInfo

public static class VersionInfo
Provides info about current version of gRPC. See https://codingforsmarties.wordpress.com/2016/01/21/how-to-version-assemblies-destined-for-nuget/ for rationale about assembly versioning.
public const string CurrentAssemblyFileVersion = "2.70.0.0"

Current AssemblyFileVersion of gRPC C# assemblies

public const string CurrentAssemblyVersion = "2.0.0.0"

Current AssemblyVersion attribute of gRPC C# assemblies

public const string CurrentVersion = "2.70.0"

Current version of gRPC C#