diff --git a/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/ChannelProducer.java b/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/ChannelProducer.java
index 0dd5b6539f8..7b7aa2408e7 100644
--- a/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/ChannelProducer.java
+++ b/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/ChannelProducer.java
@@ -36,7 +36,7 @@
  * A producer of gRPC {@link io.grpc.Channel Channels}.
  */
 @ApplicationScoped
-class ChannelProducer {
+public class ChannelProducer {
 
     private final GrpcChannelsProvider provider;
 
diff --git a/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/GrpcClientProxyBuilder.java b/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/GrpcClientProxyBuilder.java
index 78e2f37d373..5915732d87f 100644
--- a/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/GrpcClientProxyBuilder.java
+++ b/microprofile/grpc/client/src/main/java/io/helidon/microprofile/grpc/client/GrpcClientProxyBuilder.java
@@ -27,8 +27,10 @@
 
 /**
  * A builder for gRPC clients dynamic proxies.
+ *
+ * @param <T> the type of the interface to be proxied
  */
-class GrpcClientProxyBuilder<T>
+public class GrpcClientProxyBuilder<T>
         implements Builder<T> {
 
     private static final Map<Class<?>, ClientServiceDescriptor> DESCRIPTORS = new ConcurrentHashMap<>();