diff --git a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
index 996439a..beffa22 100644
--- a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
@@ -47,12 +47,28 @@
     }
 
     // server-side interface
+    [System.Obsolete("Service implementations should inherit from the generated abstract base class instead.")]
     public interface IBenchmarkService
     {
       Task<global::Grpc.Testing.SimpleResponse> UnaryCall(global::Grpc.Testing.SimpleRequest request, ServerCallContext context);
       Task StreamingCall(IAsyncStreamReader<global::Grpc.Testing.SimpleRequest> requestStream, IServerStreamWriter<global::Grpc.Testing.SimpleResponse> responseStream, ServerCallContext context);
     }
 
+    // server-side abstract class
+    public abstract class BenchmarkServiceBase
+    {
+      public virtual Task<global::Grpc.Testing.SimpleResponse> UnaryCall(global::Grpc.Testing.SimpleRequest request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task StreamingCall(IAsyncStreamReader<global::Grpc.Testing.SimpleRequest> requestStream, IServerStreamWriter<global::Grpc.Testing.SimpleResponse> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+    }
+
     // client stub
     public class BenchmarkServiceClient : ClientBase, IBenchmarkServiceClient
     {
@@ -99,6 +115,14 @@
           .AddMethod(__Method_StreamingCall, serviceImpl.StreamingCall).Build();
     }
 
+    // creates service definition that can be registered with a server
+    public static ServerServiceDefinition BindService(BenchmarkServiceBase serviceImpl)
+    {
+      return ServerServiceDefinition.CreateBuilder(__ServiceName)
+          .AddMethod(__Method_UnaryCall, serviceImpl.UnaryCall)
+          .AddMethod(__Method_StreamingCall, serviceImpl.StreamingCall).Build();
+    }
+
     // creates a new client
     public static BenchmarkServiceClient NewClient(Channel channel)
     {
@@ -170,6 +194,7 @@
     }
 
     // server-side interface
+    [System.Obsolete("Service implementations should inherit from the generated abstract base class instead.")]
     public interface IWorkerService
     {
       Task RunServer(IAsyncStreamReader<global::Grpc.Testing.ServerArgs> requestStream, IServerStreamWriter<global::Grpc.Testing.ServerStatus> responseStream, ServerCallContext context);
@@ -178,6 +203,31 @@
       Task<global::Grpc.Testing.Void> QuitWorker(global::Grpc.Testing.Void request, ServerCallContext context);
     }
 
+    // server-side abstract class
+    public abstract class WorkerServiceBase
+    {
+      public virtual Task RunServer(IAsyncStreamReader<global::Grpc.Testing.ServerArgs> requestStream, IServerStreamWriter<global::Grpc.Testing.ServerStatus> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task RunClient(IAsyncStreamReader<global::Grpc.Testing.ClientArgs> requestStream, IServerStreamWriter<global::Grpc.Testing.ClientStatus> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task<global::Grpc.Testing.CoreResponse> CoreCount(global::Grpc.Testing.CoreRequest request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task<global::Grpc.Testing.Void> QuitWorker(global::Grpc.Testing.Void request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+    }
+
     // client stub
     public class WorkerServiceClient : ClientBase, IWorkerServiceClient
     {
@@ -256,6 +306,16 @@
           .AddMethod(__Method_QuitWorker, serviceImpl.QuitWorker).Build();
     }
 
+    // creates service definition that can be registered with a server
+    public static ServerServiceDefinition BindService(WorkerServiceBase serviceImpl)
+    {
+      return ServerServiceDefinition.CreateBuilder(__ServiceName)
+          .AddMethod(__Method_RunServer, serviceImpl.RunServer)
+          .AddMethod(__Method_RunClient, serviceImpl.RunClient)
+          .AddMethod(__Method_CoreCount, serviceImpl.CoreCount)
+          .AddMethod(__Method_QuitWorker, serviceImpl.QuitWorker).Build();
+    }
+
     // creates a new client
     public static WorkerServiceClient NewClient(Channel channel)
     {
diff --git a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
index 2c46908..6b3a7cb 100644
--- a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
@@ -90,6 +90,7 @@
     }
 
     // server-side interface
+    [System.Obsolete("Service implementations should inherit from the generated abstract base class instead.")]
     public interface ITestService
     {
       Task<global::Grpc.Testing.Empty> EmptyCall(global::Grpc.Testing.Empty request, ServerCallContext context);
@@ -100,6 +101,41 @@
       Task HalfDuplexCall(IAsyncStreamReader<global::Grpc.Testing.StreamingOutputCallRequest> requestStream, IServerStreamWriter<global::Grpc.Testing.StreamingOutputCallResponse> responseStream, ServerCallContext context);
     }
 
+    // server-side abstract class
+    public abstract class TestServiceBase
+    {
+      public virtual Task<global::Grpc.Testing.Empty> EmptyCall(global::Grpc.Testing.Empty request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task<global::Grpc.Testing.SimpleResponse> UnaryCall(global::Grpc.Testing.SimpleRequest request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task StreamingOutputCall(global::Grpc.Testing.StreamingOutputCallRequest request, IServerStreamWriter<global::Grpc.Testing.StreamingOutputCallResponse> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task<global::Grpc.Testing.StreamingInputCallResponse> StreamingInputCall(IAsyncStreamReader<global::Grpc.Testing.StreamingInputCallRequest> requestStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task FullDuplexCall(IAsyncStreamReader<global::Grpc.Testing.StreamingOutputCallRequest> requestStream, IServerStreamWriter<global::Grpc.Testing.StreamingOutputCallResponse> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task HalfDuplexCall(IAsyncStreamReader<global::Grpc.Testing.StreamingOutputCallRequest> requestStream, IServerStreamWriter<global::Grpc.Testing.StreamingOutputCallResponse> responseStream, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+    }
+
     // client stub
     public class TestServiceClient : ClientBase, ITestServiceClient
     {
@@ -200,6 +236,18 @@
           .AddMethod(__Method_HalfDuplexCall, serviceImpl.HalfDuplexCall).Build();
     }
 
+    // creates service definition that can be registered with a server
+    public static ServerServiceDefinition BindService(TestServiceBase serviceImpl)
+    {
+      return ServerServiceDefinition.CreateBuilder(__ServiceName)
+          .AddMethod(__Method_EmptyCall, serviceImpl.EmptyCall)
+          .AddMethod(__Method_UnaryCall, serviceImpl.UnaryCall)
+          .AddMethod(__Method_StreamingOutputCall, serviceImpl.StreamingOutputCall)
+          .AddMethod(__Method_StreamingInputCall, serviceImpl.StreamingInputCall)
+          .AddMethod(__Method_FullDuplexCall, serviceImpl.FullDuplexCall)
+          .AddMethod(__Method_HalfDuplexCall, serviceImpl.HalfDuplexCall).Build();
+    }
+
     // creates a new client
     public static TestServiceClient NewClient(Channel channel)
     {
@@ -236,11 +284,22 @@
     }
 
     // server-side interface
+    [System.Obsolete("Service implementations should inherit from the generated abstract base class instead.")]
     public interface IUnimplementedService
     {
       Task<global::Grpc.Testing.Empty> UnimplementedCall(global::Grpc.Testing.Empty request, ServerCallContext context);
     }
 
+    // server-side abstract class
+    public abstract class UnimplementedServiceBase
+    {
+      public virtual Task<global::Grpc.Testing.Empty> UnimplementedCall(global::Grpc.Testing.Empty request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+    }
+
     // client stub
     public class UnimplementedServiceClient : ClientBase, IUnimplementedServiceClient
     {
@@ -276,6 +335,13 @@
           .AddMethod(__Method_UnimplementedCall, serviceImpl.UnimplementedCall).Build();
     }
 
+    // creates service definition that can be registered with a server
+    public static ServerServiceDefinition BindService(UnimplementedServiceBase serviceImpl)
+    {
+      return ServerServiceDefinition.CreateBuilder(__ServiceName)
+          .AddMethod(__Method_UnimplementedCall, serviceImpl.UnimplementedCall).Build();
+    }
+
     // creates a new client
     public static UnimplementedServiceClient NewClient(Channel channel)
     {
@@ -324,12 +390,28 @@
     }
 
     // server-side interface
+    [System.Obsolete("Service implementations should inherit from the generated abstract base class instead.")]
     public interface IReconnectService
     {
       Task<global::Grpc.Testing.Empty> Start(global::Grpc.Testing.Empty request, ServerCallContext context);
       Task<global::Grpc.Testing.ReconnectInfo> Stop(global::Grpc.Testing.Empty request, ServerCallContext context);
     }
 
+    // server-side abstract class
+    public abstract class ReconnectServiceBase
+    {
+      public virtual Task<global::Grpc.Testing.Empty> Start(global::Grpc.Testing.Empty request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+      public virtual Task<global::Grpc.Testing.ReconnectInfo> Stop(global::Grpc.Testing.Empty request, ServerCallContext context)
+      {
+        throw new RpcException(new Status(StatusCode.Unimplemented, ""));
+      }
+
+    }
+
     // client stub
     public class ReconnectServiceClient : ClientBase, IReconnectServiceClient
     {
@@ -386,6 +468,14 @@
           .AddMethod(__Method_Stop, serviceImpl.Stop).Build();
     }
 
+    // creates service definition that can be registered with a server
+    public static ServerServiceDefinition BindService(ReconnectServiceBase serviceImpl)
+    {
+      return ServerServiceDefinition.CreateBuilder(__ServiceName)
+          .AddMethod(__Method_Start, serviceImpl.Start)
+          .AddMethod(__Method_Stop, serviceImpl.Stop).Build();
+    }
+
     // creates a new client
     public static ReconnectServiceClient NewClient(Channel channel)
     {