diff --git a/sdk/core/Microsoft.Extensions.Azure/api/Microsoft.Extensions.Azure.netstandard2.0.cs b/sdk/core/Microsoft.Extensions.Azure/api/Microsoft.Extensions.Azure.netstandard2.0.cs
new file mode 100644
index 0000000000000..a9be4f097bab5
--- /dev/null
+++ b/sdk/core/Microsoft.Extensions.Azure/api/Microsoft.Extensions.Azure.netstandard2.0.cs
@@ -0,0 +1,33 @@
+namespace Microsoft.Extensions.Azure
+{
+    public static partial class AzureClientBuilderExtensions
+    {
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> ConfigureOptions<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, Microsoft.Extensions.Configuration.IConfiguration configuration) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> ConfigureOptions<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, System.Action<TOptions, System.IServiceProvider> configureOptions) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> ConfigureOptions<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, System.Action<TOptions> configureOptions) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> WithCredential<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, Azure.Core.TokenCredential credential) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> WithCredential<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, System.Func<System.IServiceProvider, Azure.Core.TokenCredential> credentialFactory) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> WithName<TClient, TOptions>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, string name) where TOptions : class { throw null; }
+        public static Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> WithVersion<TClient, TOptions, TVersion>(this Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> builder, TVersion version) where TOptions : class { throw null; }
+    }
+    public sealed partial class AzureClientFactoryBuilder : Azure.Core.Extensions.IAzureClientFactoryBuilder, Azure.Core.Extensions.IAzureClientFactoryBuilderWithConfiguration<Microsoft.Extensions.Configuration.IConfiguration>, Azure.Core.Extensions.IAzureClientFactoryBuilderWithCredential
+    {
+        internal AzureClientFactoryBuilder() { }
+        Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> Azure.Core.Extensions.IAzureClientFactoryBuilder.RegisterClientFactory<TClient, TOptions>(System.Func<TOptions, TClient> clientFactory) { throw null; }
+        Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> Azure.Core.Extensions.IAzureClientFactoryBuilderWithConfiguration<Microsoft.Extensions.Configuration.IConfiguration>.RegisterClientFactory<TClient, TOptions>(Microsoft.Extensions.Configuration.IConfiguration configuration) { throw null; }
+        Azure.Core.Extensions.IAzureClientBuilder<TClient, TOptions> Azure.Core.Extensions.IAzureClientFactoryBuilderWithCredential.RegisterClientFactory<TClient, TOptions>(System.Func<TOptions, Azure.Core.TokenCredential, TClient> clientFactory, bool requiresCredential) { throw null; }
+        public Microsoft.Extensions.Azure.AzureClientFactoryBuilder ConfigureDefaults(Microsoft.Extensions.Configuration.IConfiguration configuration) { throw null; }
+        public Microsoft.Extensions.Azure.AzureClientFactoryBuilder ConfigureDefaults(System.Action<Azure.Core.ClientOptions, System.IServiceProvider> configureOptions) { throw null; }
+        public Microsoft.Extensions.Azure.AzureClientFactoryBuilder ConfigureDefaults(System.Action<Azure.Core.ClientOptions> configureOptions) { throw null; }
+        public Microsoft.Extensions.Azure.AzureClientFactoryBuilder UseCredential(Azure.Core.TokenCredential tokenCredential) { throw null; }
+        public Microsoft.Extensions.Azure.AzureClientFactoryBuilder UseCredential(System.Func<System.IServiceProvider, Azure.Core.TokenCredential> tokenCredentialFactory) { throw null; }
+    }
+    public static partial class AzureClientServiceCollectionExtensions
+    {
+        public static void AddAzureClients(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection, System.Action<Microsoft.Extensions.Azure.AzureClientFactoryBuilder> configureClients) { }
+    }
+    public partial interface IAzureClientFactory<TClient>
+    {
+        TClient CreateClient(string name);
+    }
+}