diff --git a/tempest/api/identity/admin/v3/test_credentials.py b/tempest/api/identity/admin/v3/test_credentials.py
index 662d06c..b148103 100644
--- a/tempest/api/identity/admin/v3/test_credentials.py
+++ b/tempest/api/identity/admin/v3/test_credentials.py
@@ -57,7 +57,7 @@
                 data_utils.rand_name('Secret')]
         cred = self.creds_client.create_credential(
             keys[0], keys[1], self.user_body['id'],
-            self.projects[0])
+            self.projects[0])['credential']
         self.addCleanup(self._delete_credential, cred['id'])
         for value1 in self.creds_list[0]:
             self.assertIn(value1, cred)
@@ -68,14 +68,14 @@
                     data_utils.rand_name('NewSecret')]
         update_body = self.creds_client.update_credential(
             cred['id'], access_key=new_keys[0], secret_key=new_keys[1],
-            project_id=self.projects[1])
+            project_id=self.projects[1])['credential']
         self.assertEqual(cred['id'], update_body['id'])
         self.assertEqual(self.projects[1], update_body['project_id'])
         self.assertEqual(self.user_body['id'], update_body['user_id'])
         self.assertEqual(update_body['blob']['access'], new_keys[0])
         self.assertEqual(update_body['blob']['secret'], new_keys[1])
 
-        get_body = self.creds_client.get_credential(cred['id'])
+        get_body = self.creds_client.get_credential(cred['id'])['credential']
         for value1 in self.creds_list[0]:
             self.assertEqual(update_body[value1],
                              get_body[value1])
@@ -92,11 +92,11 @@
             cred = self.creds_client.create_credential(
                 data_utils.rand_name('Access'),
                 data_utils.rand_name('Secret'),
-                self.user_body['id'], self.projects[0])
+                self.user_body['id'], self.projects[0])['credential']
             created_cred_ids.append(cred['id'])
             self.addCleanup(self._delete_credential, cred['id'])
 
-        creds = self.creds_client.list_credentials()
+        creds = self.creds_client.list_credentials()['credentials']
 
         for i in creds:
             fetched_cred_ids.append(i['id'])
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index e27f960..decf3a8 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -36,11 +36,11 @@
         self.expected_success(201, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body)
 
     def update_credential(self, credential_id, **kwargs):
         """Updates a credential."""
-        body = self.get_credential(credential_id)
+        body = self.get_credential(credential_id)['credential']
         cred_type = kwargs.get('type', body['type'])
         access_key = kwargs.get('access_key', body['blob']['access'])
         secret_key = kwargs.get('secret_key', body['blob']['secret'])
@@ -59,7 +59,7 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body)
 
     def get_credential(self, credential_id):
         """To GET Details of a credential."""
@@ -67,14 +67,14 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return service_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body)
 
     def list_credentials(self):
         """Lists out all the available credentials."""
         resp, body = self.get('credentials')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return service_client.ResponseBodyList(resp, body['credentials'])
+        return service_client.ResponseBody(resp, body)
 
     def delete_credential(self, credential_id):
         """Deletes a credential."""