diff --git a/tempest/api_schema/compute/certificates.py b/tempest/api_schema/compute/certificates.py
new file mode 100644
index 0000000..caac2ab
--- /dev/null
+++ b/tempest/api_schema/compute/certificates.py
@@ -0,0 +1,37 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    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.
+
+import copy
+
+_common_schema = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'certificate': {
+                'type': 'object',
+                'properties': {
+                    'data': {'type': 'string'},
+                    'private_key': {'type': 'string'},
+                },
+                'required': ['data', 'private_key'],
+            }
+        },
+        'required': ['certificate'],
+    }
+}
+
+get_certificate = copy.deepcopy(_common_schema)
+get_certificate['response_body']['properties']['certificate'][
+    'properties']['private_key'].update({'type': 'null'})
diff --git a/tempest/api_schema/compute/v2/certificates.py b/tempest/api_schema/compute/v2/certificates.py
new file mode 100644
index 0000000..1eb38ce
--- /dev/null
+++ b/tempest/api_schema/compute/v2/certificates.py
@@ -0,0 +1,19 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    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.
+
+import copy
+
+from tempest.api_schema.compute import certificates
+
+create_certificate = copy.deepcopy(certificates._common_schema)
diff --git a/tempest/api_schema/compute/v3/certificates.py b/tempest/api_schema/compute/v3/certificates.py
new file mode 100644
index 0000000..0723a16
--- /dev/null
+++ b/tempest/api_schema/compute/v3/certificates.py
@@ -0,0 +1,20 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    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.
+
+import copy
+
+from tempest.api_schema.compute import certificates
+
+create_certificate = copy.deepcopy(certificates._common_schema)
+create_certificate['status_code'] = [201]
diff --git a/tempest/services/compute/json/certificates_client.py b/tempest/services/compute/json/certificates_client.py
index c05e352..1d04628 100644
--- a/tempest/services/compute/json/certificates_client.py
+++ b/tempest/services/compute/json/certificates_client.py
@@ -15,6 +15,8 @@
 
 import json
 
+from tempest.api_schema.compute import certificates as schema
+from tempest.api_schema.compute.v2 import certificates as v2schema
 from tempest.common import rest_client
 from tempest import config
 
@@ -31,6 +33,7 @@
         url = "os-certificates/%s" % (id)
         resp, body = self.get(url)
         body = json.loads(body)
+        self.validate_response(schema.get_certificate, resp, body)
         return resp, body['certificate']
 
     def create_certificate(self):
@@ -38,4 +41,5 @@
         url = "os-certificates"
         resp, body = self.post(url, None)
         body = json.loads(body)
+        self.validate_response(v2schema.create_certificate, resp, body)
         return resp, body['certificate']
diff --git a/tempest/services/compute/v3/json/certificates_client.py b/tempest/services/compute/v3/json/certificates_client.py
index f8beeb9..be9b3c3 100644
--- a/tempest/services/compute/v3/json/certificates_client.py
+++ b/tempest/services/compute/v3/json/certificates_client.py
@@ -15,6 +15,8 @@
 
 import json
 
+from tempest.api_schema.compute import certificates as schema
+from tempest.api_schema.compute.v3 import certificates as v3schema
 from tempest.common import rest_client
 from tempest import config
 
@@ -31,6 +33,7 @@
         url = "os-certificates/%s" % (id)
         resp, body = self.get(url)
         body = json.loads(body)
+        self.validate_response(schema.get_certificate, resp, body)
         return resp, body['certificate']
 
     def create_certificate(self):
@@ -38,4 +41,5 @@
         url = "os-certificates"
         resp, body = self.post(url, None)
         body = json.loads(body)
+        self.validate_response(v3schema.create_certificate, resp, body)
         return resp, body['certificate']