diff --git a/azurefunctions-extensions-base/azurefunctions/extensions/base/__init__.py b/azurefunctions-extensions-base/azurefunctions/extensions/base/__init__.py
index cf1eb24..a6abbf3 100644
--- a/azurefunctions-extensions-base/azurefunctions/extensions/base/__init__.py
+++ b/azurefunctions-extensions-base/azurefunctions/extensions/base/__init__.py
@@ -1,6 +1,7 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
+from .grpcClientType import GrpcClientType
 from .meta import (
     Datum,
     InConverter,
@@ -31,6 +32,7 @@
     "get_binding_registry",
     "ModuleTrackerMeta",
     "RequestTrackerMeta",
+    "GrpcClientType",
     "ResponseTrackerMeta",
     "HttpV2FeatureChecker",
     "ResponseLabels",
diff --git a/azurefunctions-extensions-base/azurefunctions/extensions/base/grpcClientType.py b/azurefunctions-extensions-base/azurefunctions/extensions/base/grpcClientType.py
new file mode 100644
index 0000000..03f851f
--- /dev/null
+++ b/azurefunctions-extensions-base/azurefunctions/extensions/base/grpcClientType.py
@@ -0,0 +1,7 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+
+class GrpcClientType:
+    def __init__(self, *, data: dict = None):
+        self._data = data or {}
diff --git a/azurefunctions-extensions-base/azurefunctions/extensions/base/meta.py b/azurefunctions-extensions-base/azurefunctions/extensions/base/meta.py
index a771a9f..1535c69 100644
--- a/azurefunctions-extensions-base/azurefunctions/extensions/base/meta.py
+++ b/azurefunctions-extensions-base/azurefunctions/extensions/base/meta.py
@@ -6,7 +6,7 @@
 import json
 from typing import Any, Dict, Mapping, Optional, Tuple, Union, get_args, get_origin
 
-from . import sdkType, utils
+from . import grpcClientType, sdkType, utils
 
 
 class Datum:
@@ -99,6 +99,15 @@ def check_supported_type(cls, annotation: type) -> bool:
         # An iterable who only has one inner type and is a subclass of SdkType
         return cls._is_iterable_supported_type(annotation)
 
+    @classmethod
+    def check_supported_grpc_client_type(cls, annotation: type) -> bool:
+        if annotation is None:
+            return False
+
+        # The annotation is a class/type (not an object) - not iterable
+        return (isinstance(annotation, type)
+                and issubclass(annotation, grpcClientType.GrpcClientType))
+
     @classmethod
     def _is_iterable_supported_type(cls, annotation: type) -> bool:
         # Check base type from type hint. Ex: List from List[SdkType]
diff --git a/azurefunctions-extensions-base/tests/test_meta.py b/azurefunctions-extensions-base/tests/test_meta.py
index cb493ff..6dca666 100644
--- a/azurefunctions-extensions-base/tests/test_meta.py
+++ b/azurefunctions-extensions-base/tests/test_meta.py
@@ -6,6 +6,7 @@
 from unittest.mock import patch
 
 from azurefunctions.extensions.base import meta, sdkType
+from azurefunctions.extensions.base.grpcClientType import GrpcClientType
 
 
 class TestMeta(unittest.TestCase):
@@ -162,6 +163,21 @@ class MockIndexedFunction:
             self.assertTrue(registry.check_supported_type(set[sdkType.SdkType]))
             self.assertFalse(registry.check_supported_type(dict[str, sdkType.SdkType]))
 
+    def test_registry_grpc_client(self):
+        registry = meta.get_binding_registry()
+        self.assertIsInstance(registry, type(meta._ConverterMeta))
+        self.assertIsNone(registry.get("test"))
+
+        class MockIndexedFunction:
+            _bindings = {}
+            _trigger = None
+
+        self.assertEqual(registry.get_raw_bindings(MockIndexedFunction, []), ([], {}))
+
+        self.assertFalse(registry.check_supported_grpc_client_type(None))
+        self.assertFalse(registry.check_supported_grpc_client_type("hello"))
+        self.assertTrue(registry.check_supported_grpc_client_type(GrpcClientType))
+
     def test_decode_typed_data(self):
         # Case 1: data is None
         self.assertIsNone(