diff --git a/core/google/api/__init__.py b/core/google/api/__init__.py
new file mode 100644
index 0000000000000..2648890d2599b
--- /dev/null
+++ b/core/google/api/__init__.py
@@ -0,0 +1,22 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Google API namespace package."""
+
+try:
+    import pkg_resources
+    pkg_resources.declare_namespace(__name__)
+except ImportError:
+    import pkgutil
+    __path__ = pkgutil.extend_path(__path__, __name__)
diff --git a/core/google/api/core/__init__.py b/core/google/api/core/__init__.py
new file mode 100644
index 0000000000000..123d3e291c704
--- /dev/null
+++ b/core/google/api/core/__init__.py
@@ -0,0 +1,18 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Google API Core.
+
+This package contains common code and utilties used by Google client libraries.
+"""
diff --git a/core/setup.py b/core/setup.py
index 52ea0c253d8d0..5cc4a9c8141b3 100644
--- a/core/setup.py
+++ b/core/setup.py
@@ -67,6 +67,7 @@
     namespace_packages=[
         'google',
         'google.cloud',
+        'google.api',
     ],
     packages=find_packages(exclude=('tests*',)),
     install_requires=REQUIREMENTS,