Connecting to Oracle Database Cloud Service
Oracle Providers for ASP.NET support connectivity with Oracle Database Cloud Services, including Oracle Autonomous Database.
Set-up Instructions
Oracle recommends using the latest Oracle Providers for ASP.NET version available when connecting to Oracle Database Cloud Services. You will find instructions about how to connect .NET apps to Oracle Autonomous Database and Oracle Database Cloud here:
https://www.oracle.com/topics/technologies/dotnet/dotnetcloud.html