diff --git a/google/cloud/trace/_gapic.py b/google/cloud/trace/_gapic.py
index 435d9fcc..00ac94d3 100644
--- a/google/cloud/trace/_gapic.py
+++ b/google/cloud/trace/_gapic.py
@@ -314,6 +314,8 @@ def make_trace_api(client):
         proper configurations.
     """
     generated = trace_service_client.TraceServiceClient(
-        credentials=client._credentials, client_info=client._client_info
+        credentials=client._credentials,
+        client_info=client._client_info,
+        client_options=client._client_options,
     )
     return _TraceAPI(generated, client)
diff --git a/google/cloud/trace/client.py b/google/cloud/trace/client.py
index c4c9d5dd..90ddd713 100644
--- a/google/cloud/trace/client.py
+++ b/google/cloud/trace/client.py
@@ -39,6 +39,9 @@ class Client(ClientWithProject):
             requests. If ``None``, then default info will be used. Generally,
             you only need to set this if you're developing your own library
             or partner tool.
+        client_options (Union[dict, google.api_core.client_options.ClientOptions]):
+            Client options used to set user options on the client. API Endpoint
+            should be set through client_options.
     """
 
     SCOPE = (
@@ -49,9 +52,16 @@ class Client(ClientWithProject):
 
     _trace_api = None
 
-    def __init__(self, project=None, credentials=None, client_info=_CLIENT_INFO):
+    def __init__(
+        self,
+        project=None,
+        credentials=None,
+        client_info=_CLIENT_INFO,
+        client_options=None,
+    ):
         super(Client, self).__init__(project=project, credentials=credentials)
         self._client_info = client_info
+        self._client_options = client_options
 
     @property
     def trace_api(self):
diff --git a/google/cloud/trace/v1/_gapic.py b/google/cloud/trace/v1/_gapic.py
index 365f535e..a5f5b2f7 100644
--- a/google/cloud/trace/v1/_gapic.py
+++ b/google/cloud/trace/v1/_gapic.py
@@ -178,7 +178,9 @@ def make_trace_api(client):
         proper configurations.
     """
     generated = trace_service_client.TraceServiceClient(
-        credentials=client._credentials, client_info=client._client_info
+        credentials=client._credentials,
+        client_info=client._client_info,
+        client_options=client._client_options,
     )
     return _TraceAPI(generated, client)
 
diff --git a/google/cloud/trace/v1/client.py b/google/cloud/trace/v1/client.py
index 26615893..2b797730 100644
--- a/google/cloud/trace/v1/client.py
+++ b/google/cloud/trace/v1/client.py
@@ -41,6 +41,9 @@ class Client(ClientWithProject):
             requests. If ``None``, then default info will be used. Generally,
             you only need to set this if you're developing your own library
             or partner tool.
+        client_options (Union[dict, google.api_core.client_options.ClientOptions]):
+            Client options used to set user options on the client. API Endpoint
+            should be set through client_options.
     """
 
     SCOPE = (
@@ -51,9 +54,16 @@ class Client(ClientWithProject):
 
     _trace_api = None
 
-    def __init__(self, project=None, credentials=None, client_info=_CLIENT_INFO):
+    def __init__(
+        self,
+        project=None,
+        credentials=None,
+        client_info=_CLIENT_INFO,
+        client_options=None,
+    ):
         super(Client, self).__init__(project=project, credentials=credentials)
         self._client_info = client_info
+        self._client_options = client_options
 
     @property
     def trace_api(self):
diff --git a/tests/unit/v1/test__gapic_v1.py b/tests/unit/v1/test__gapic_v1.py
index bd21f026..bf9103e7 100644
--- a/tests/unit/v1/test__gapic_v1.py
+++ b/tests/unit/v1/test__gapic_v1.py
@@ -227,7 +227,7 @@ def _call_fut(self, client):
     def test_it(self):
         from google.cloud.trace.v1._gapic import _TraceAPI
 
-        client = mock.Mock(spec=["_credentials", "_client_info"])
+        client = mock.Mock(spec=["_credentials", "_client_info", "_client_options"])
 
         patch_api = mock.patch(
             "google.cloud.trace.v1._gapic.trace_service_client.TraceServiceClient"
@@ -237,7 +237,9 @@ def test_it(self):
             trace_api = self._call_fut(client)
 
         patched.assert_called_once_with(
-            credentials=client._credentials, client_info=client._client_info
+            credentials=client._credentials,
+            client_info=client._client_info,
+            client_options=client._client_options,
         )
 
         self.assertIsInstance(trace_api, _TraceAPI)
diff --git a/tests/unit/v1/test_client_v1.py b/tests/unit/v1/test_client_v1.py
index d3e1c391..9f50e868 100644
--- a/tests/unit/v1/test_client_v1.py
+++ b/tests/unit/v1/test_client_v1.py
@@ -47,11 +47,16 @@ def test_constructor_defaults(self):
     def test_constructor_explicit(self):
         credentials = _make_credentials()
         client_info = mock.Mock()
+        client_options = mock.Mock()
         client = self._make_one(
-            project=self.project, credentials=credentials, client_info=client_info
+            project=self.project,
+            credentials=credentials,
+            client_info=client_info,
+            client_options=client_options,
         )
         self.assertEqual(client.project, self.project)
         self.assertIs(client._client_info, client_info)
+        self.assertIs(client._client_options, client_options)
 
     def test_trace_api(self):
         clients = []
diff --git a/tests/unit/v2/test__gapic_v2.py b/tests/unit/v2/test__gapic_v2.py
index e6859b59..fd647240 100644
--- a/tests/unit/v2/test__gapic_v2.py
+++ b/tests/unit/v2/test__gapic_v2.py
@@ -272,7 +272,7 @@ def _call_fut(self, client):
     def test_it(self):
         from google.cloud.trace._gapic import _TraceAPI
 
-        client = mock.Mock(spec=["_credentials", "_client_info"])
+        client = mock.Mock(spec=["_credentials", "_client_info", "_client_options"])
 
         patch_api = mock.patch(
             "google.cloud.trace._gapic.trace_service_client.TraceServiceClient"
@@ -282,7 +282,9 @@ def test_it(self):
             trace_api = self._call_fut(client)
 
         patched.assert_called_once_with(
-            credentials=client._credentials, client_info=client._client_info
+            credentials=client._credentials,
+            client_info=client._client_info,
+            client_options=client._client_options,
         )
 
         self.assertIsInstance(trace_api, _TraceAPI)
diff --git a/tests/unit/v2/test_client_v2.py b/tests/unit/v2/test_client_v2.py
index d5a14aeb..4cd8a2a8 100644
--- a/tests/unit/v2/test_client_v2.py
+++ b/tests/unit/v2/test_client_v2.py
@@ -47,10 +47,15 @@ def test_constructor_defaults(self):
     def test_constructor_explicit(self):
         credentials = _make_credentials()
         client_info = mock.Mock()
+        client_options = mock.Mock()
         client = self._make_one(
-            project=self.project, credentials=credentials, client_info=client_info
+            project=self.project,
+            credentials=credentials,
+            client_info=client_info,
+            client_options=client_options,
         )
         self.assertEqual(client.project, self.project)
+        self.assertIs(client._client_options, client_options)
 
     def test_trace_api(self):
         clients = []