diff --git a/cratonclient/crud.py b/cratonclient/crud.py
index ef9689d..ae33ac0 100644
--- a/cratonclient/crud.py
+++ b/cratonclient/crud.py
@@ -1,3 +1,17 @@
+# -*- coding: utf-8 -*-
+
+# 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.
+
 """Client for CRUD operations."""
 
 class CRUDClient(object):
diff --git a/cratonclient/v1/__init__.py b/cratonclient/v1/__init__.py
index e69de29..19f5e72 100644
--- a/cratonclient/v1/__init__.py
+++ b/cratonclient/v1/__init__.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+# 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.
diff --git a/cratonclient/v1/client.py b/cratonclient/v1/client.py
index ae81bf2..951a594 100644
--- a/cratonclient/v1/client.py
+++ b/cratonclient/v1/client.py
@@ -1,3 +1,16 @@
+# -*- coding: utf-8 -*-
+
+# 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.
 """Top-level client for version 1 of Craton's API."""
 from cratonclient.v1 import hosts
 from cratonclient.v1 import regions
diff --git a/cratonclient/v1/hosts.py b/cratonclient/v1/hosts.py
index dc93d69..9f3e17f 100644
--- a/cratonclient/v1/hosts.py
+++ b/cratonclient/v1/hosts.py
@@ -1,3 +1,16 @@
+# -*- coding: utf-8 -*-
+
+# 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.
 """Hosts resource and resource manager."""
 from cratonclient import crud
 
diff --git a/cratonclient/v1/regions.py b/cratonclient/v1/regions.py
index 6f877f9..9a11e4c 100644
--- a/cratonclient/v1/regions.py
+++ b/cratonclient/v1/regions.py
@@ -1,3 +1,16 @@
+# -*- coding: utf-8 -*-
+
+# 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.
 """Regions manager code."""
 from cratonclient import crud