diff --git a/tempest/api/compute/admin/test_live_migration.py b/tempest/api/compute/admin/test_live_migration.py
index 79c2ac9..8dc8df5 100644
--- a/tempest/api/compute/admin/test_live_migration.py
+++ b/tempest/api/compute/admin/test_live_migration.py
@@ -81,7 +81,7 @@
             return server_id
 
     def _volume_clean_up(self, server_id, volume_id):
-        body = self.volumes_client.show_volume(volume_id)
+        body = self.volumes_client.show_volume(volume_id)['volume']
         if body['status'] == 'in-use':
             self.servers_client.detach_volume(server_id, volume_id)
             self.volumes_client.wait_for_volume_status(volume_id, 'available')
@@ -157,7 +157,8 @@
         actual_host = self._get_host_for_server(server_id)
         target_host = self._get_host_other_than(actual_host)
 
-        volume = self.volumes_client.create_volume(display_name='test')
+        volume = self.volumes_client.create_volume(
+            display_name='test')['volume']
 
         self.volumes_client.wait_for_volume_status(volume['id'],
                                                    'available')
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index 6496854..9a69d24 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -75,7 +75,7 @@
 
         # Create a volume and wait for it to become ready
         self.volume = self.volumes_client.create_volume(
-            CONF.volume.volume_size, display_name='test')
+            CONF.volume.volume_size, display_name='test')['volume']
         self.addCleanup(self._delete_volume)
         self.volumes_client.wait_for_volume_status(self.volume['id'],
                                                    'available')
diff --git a/tempest/api/orchestration/stacks/test_volumes.py b/tempest/api/orchestration/stacks/test_volumes.py
index d8f117e..4ba38ad 100644
--- a/tempest/api/orchestration/stacks/test_volumes.py
+++ b/tempest/api/orchestration/stacks/test_volumes.py
@@ -34,7 +34,7 @@
 
     def _cinder_verify(self, volume_id, template):
         self.assertIsNotNone(volume_id)
-        volume = self.volumes_client.show_volume(volume_id)
+        volume = self.volumes_client.show_volume(volume_id)['volume']
         self.assertEqual('available', volume.get('status'))
         self.assertEqual(template['resources']['volume']['properties'][
             'size'], volume.get('size'))
diff --git a/tempest/api/volume/admin/test_multi_backend.py b/tempest/api/volume/admin/test_multi_backend.py
index c7e989d..5b65c84 100644
--- a/tempest/api/volume/admin/test_multi_backend.py
+++ b/tempest/api/volume/admin/test_multi_backend.py
@@ -71,7 +71,8 @@
 
         params = {self.name_field: vol_name, 'volume_type': type_name}
 
-        self.volume = self.admin_volume_client.create_volume(**params)
+        self.volume = self.admin_volume_client.create_volume(
+            **params)['volume']
         if with_prefix:
             self.volume_id_list_with_prefix.append(self.volume['id'])
         else:
@@ -135,7 +136,7 @@
         # the multi backend feature has been enabled
         # if multi-backend is enabled: os-vol-attr:host should be like:
         # host@backend_name
-        volume = self.admin_volume_client.show_volume(volume_id)
+        volume = self.admin_volume_client.show_volume(volume_id)['volume']
 
         volume1_host = volume['os-vol-host-attr:host']
         msg = ("multi-backend reporting incorrect values for volume %s" %
@@ -146,10 +147,10 @@
         # this test checks that the two volumes created at setUp don't
         # belong to the same backend (if they are, than the
         # volume backend distinction is not working properly)
-        volume = self.admin_volume_client.show_volume(volume1_id)
+        volume = self.admin_volume_client.show_volume(volume1_id)['volume']
         volume1_host = volume['os-vol-host-attr:host']
 
-        volume = self.admin_volume_client.show_volume(volume2_id)
+        volume = self.admin_volume_client.show_volume(volume2_id)['volume']
         volume2_host = volume['os-vol-host-attr:host']
 
         msg = ("volumes %s and %s were created in the same backend" %
diff --git a/tempest/api/volume/admin/test_snapshots_actions.py b/tempest/api/volume/admin/test_snapshots_actions.py
index c860b4b..2efac39 100644
--- a/tempest/api/volume/admin/test_snapshots_actions.py
+++ b/tempest/api/volume/admin/test_snapshots_actions.py
@@ -34,7 +34,7 @@
         cls.name_field = cls.special_fields['name_field']
         params = {cls.name_field: vol_name}
         cls.volume = \
-            cls.volumes_client.create_volume(**params)
+            cls.volumes_client.create_volume(**params)['volume']
         cls.volumes_client.wait_for_volume_status(cls.volume['id'],
                                                   'available')
 
diff --git a/tempest/api/volume/admin/test_volume_types.py b/tempest/api/volume/admin/test_volume_types.py
index b79c185..2652bd1 100644
--- a/tempest/api/volume/admin/test_volume_types.py
+++ b/tempest/api/volume/admin/test_volume_types.py
@@ -58,7 +58,7 @@
                   'volume_type': volume_types[0]['id']}
 
         # Create volume
-        volume = self.volumes_client.create_volume(**params)
+        volume = self.volumes_client.create_volume(**params)['volume']
         self.addCleanup(self._delete_volume, volume['id'])
         self.assertEqual(volume_types[0]['name'], volume["volume_type"])
         self.assertEqual(volume[self.name_field], vol_name,
@@ -74,7 +74,8 @@
         self.volumes_client.wait_for_volume_status(volume['id'], 'available')
 
         # Get volume details and Verify
-        fetched_volume = self.volumes_client.show_volume(volume['id'])
+        fetched_volume = self.volumes_client.show_volume(
+            volume['id'])['volume']
         self.assertEqual(volume_types[1]['name'],
                          fetched_volume['volume_type'],
                          'The fetched Volume type is different '
diff --git a/tempest/api/volume/admin/test_volumes_actions.py b/tempest/api/volume/admin/test_volumes_actions.py
index 4288d58..6c32321 100644
--- a/tempest/api/volume/admin/test_volumes_actions.py
+++ b/tempest/api/volume/admin/test_volumes_actions.py
@@ -34,7 +34,7 @@
         cls.name_field = cls.special_fields['name_field']
         params = {cls.name_field: vol_name}
 
-        cls.volume = cls.client.create_volume(**params)
+        cls.volume = cls.client.create_volume(**params)['volume']
         cls.client.wait_for_volume_status(cls.volume['id'], 'available')
 
     @classmethod
@@ -60,7 +60,7 @@
         # Create a temp volume for force delete tests
         vol_name = utils.rand_name('Volume')
         params = {self.name_field: vol_name}
-        temp_volume = self.client.create_volume(**params)
+        temp_volume = self.client.create_volume(**params)['volume']
         self.client.wait_for_volume_status(temp_volume['id'], 'available')
 
         return temp_volume
@@ -78,7 +78,7 @@
         # test volume reset status : available->error->available
         self._reset_volume_status(self.volume['id'], 'error')
         volume_get = self.admin_volume_client.show_volume(
-            self.volume['id'])
+            self.volume['id'])['volume']
         self.assertEqual('error', volume_get['status'])
 
     @test.idempotent_id('21737d5a-92f2-46d7-b009-a0cc0ee7a570')
diff --git a/tempest/api/volume/admin/test_volumes_backup.py b/tempest/api/volume/admin/test_volumes_backup.py
index 8015c35..2bd8bc6 100644
--- a/tempest/api/volume/admin/test_volumes_backup.py
+++ b/tempest/api/volume/admin/test_volumes_backup.py
@@ -119,7 +119,7 @@
                                                         'available')
 
         # Verify if restored volume is there in volume list
-        volumes = self.admin_volume_client.list_volumes()
+        volumes = self.admin_volume_client.list_volumes()['volumes']
         self.assertIn(restore['volume_id'], [v['id'] for v in volumes])
         self.backups_adm_client.wait_for_backup_status(import_backup['id'],
                                                        'available')
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index b67a6d2..1d271bf 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -113,7 +113,7 @@
         name_field = cls.special_fields['name_field']
 
         kwargs[name_field] = name
-        volume = cls.volumes_client.create_volume(size, **kwargs)
+        volume = cls.volumes_client.create_volume(size, **kwargs)['volume']
 
         cls.volumes.append(volume)
         cls.volumes_client.wait_for_volume_status(volume['id'], 'available')
diff --git a/tempest/api/volume/test_volume_metadata.py b/tempest/api/volume/test_volume_metadata.py
index 8529cfc..e529538 100644
--- a/tempest/api/volume/test_volume_metadata.py
+++ b/tempest/api/volume/test_volume_metadata.py
@@ -42,14 +42,16 @@
                     "key4": "<value&special_chars>"}
 
         body = self.volumes_client.create_volume_metadata(self.volume_id,
-                                                          metadata)
+                                                          metadata)['metadata']
         # Get the metadata of the volume
-        body = self.volumes_client.show_volume_metadata(self.volume_id)
+        body = self.volumes_client.show_volume_metadata(
+            self.volume_id)['metadata']
         self.assertThat(body.items(), matchers.ContainsAll(metadata.items()))
         # Delete one item metadata of the volume
         self.volumes_client.delete_volume_metadata_item(
             self.volume_id, "key1")
-        body = self.volumes_client.show_volume_metadata(self.volume_id)
+        body = self.volumes_client.show_volume_metadata(
+            self.volume_id)['metadata']
         self.assertNotIn("key1", body)
         del metadata["key1"]
         self.assertThat(body.items(), matchers.ContainsAll(metadata.items()))
@@ -66,15 +68,17 @@
 
         # Create metadata for the volume
         body = self.volumes_client.create_volume_metadata(
-            self.volume_id, metadata)
+            self.volume_id, metadata)['metadata']
         # Get the metadata of the volume
-        body = self.volumes_client.show_volume_metadata(self.volume_id)
+        body = self.volumes_client.show_volume_metadata(
+            self.volume_id)['metadata']
         self.assertThat(body.items(), matchers.ContainsAll(metadata.items()))
         # Update metadata
         body = self.volumes_client.update_volume_metadata(
-            self.volume_id, update)
+            self.volume_id, update)['metadata']
         # Get the metadata of the volume
-        body = self.volumes_client.show_volume_metadata(self.volume_id)
+        body = self.volumes_client.show_volume_metadata(
+            self.volume_id)['metadata']
         self.assertEqual(update, body)
 
     @test.idempotent_id('862261c5-8df4-475a-8c21-946e50e36a20')
@@ -89,13 +93,14 @@
                   "key3": "value3_update"}
         # Create metadata for the volume
         body = self.volumes_client.create_volume_metadata(
-            self.volume_id, metadata)
+            self.volume_id, metadata)['metadata']
         self.assertThat(body.items(), matchers.ContainsAll(metadata.items()))
         # Update metadata item
         body = self.volumes_client.update_volume_metadata_item(
-            self.volume_id, "key3", update_item)
+            self.volume_id, "key3", update_item)['meta']
         # Get the metadata of the volume
-        body = self.volumes_client.show_volume_metadata(self.volume_id)
+        body = self.volumes_client.show_volume_metadata(
+            self.volume_id)['metadata']
         self.assertThat(body.items(), matchers.ContainsAll(expect.items()))
 
 
diff --git a/tempest/api/volume/test_volume_transfers.py b/tempest/api/volume/test_volume_transfers.py
index 27f8112..c0b6b7e 100644
--- a/tempest/api/volume/test_volume_transfers.py
+++ b/tempest/api/volume/test_volume_transfers.py
@@ -47,24 +47,24 @@
         self.addCleanup(self._delete_volume, volume['id'])
 
         # Create a volume transfer
-        transfer = self.client.create_volume_transfer(volume['id'])
+        transfer = self.client.create_volume_transfer(volume['id'])['transfer']
         transfer_id = transfer['id']
         auth_key = transfer['auth_key']
         self.client.wait_for_volume_status(volume['id'],
                                            'awaiting-transfer')
 
         # Get a volume transfer
-        body = self.client.show_volume_transfer(transfer_id)
+        body = self.client.show_volume_transfer(transfer_id)['transfer']
         self.assertEqual(volume['id'], body['volume_id'])
 
         # List volume transfers, the result should be greater than
         # or equal to 1
-        body = self.client.list_volume_transfers()
+        body = self.client.list_volume_transfers()['transfers']
         self.assertThat(len(body), matchers.GreaterThan(0))
 
         # Accept a volume transfer by alt_tenant
         body = self.alt_client.accept_volume_transfer(transfer_id,
-                                                      auth_key)
+                                                      auth_key)['transfer']
         self.alt_client.wait_for_volume_status(volume['id'], 'available')
 
     @test.idempotent_id('ab526943-b725-4c07-b875-8e8ef87a2c30')
@@ -74,13 +74,13 @@
         self.addCleanup(self._delete_volume, volume['id'])
 
         # Create a volume transfer
-        body = self.client.create_volume_transfer(volume['id'])
+        body = self.client.create_volume_transfer(volume['id'])['transfer']
         transfer_id = body['id']
         self.client.wait_for_volume_status(volume['id'],
                                            'awaiting-transfer')
 
         # List all volume transfers (looking for the one we created)
-        body = self.client.list_volume_transfers()
+        body = self.client.list_volume_transfers()['transfers']
         for transfer in body:
             if volume['id'] == transfer['volume_id']:
                 break
diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index 067c0c1..124ea0c 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -78,7 +78,8 @@
         # Verify that a volume bootable flag is retrieved
         for bool_bootable in [True, False]:
             self.client.set_bootable_volume(self.volume['id'], bool_bootable)
-            fetched_volume = self.client.show_volume(self.volume['id'])
+            fetched_volume = self.client.show_volume(
+                self.volume['id'])['volume']
             # Get Volume information
             bool_flag = self._is_true(fetched_volume['bootable'])
             self.assertEqual(bool_bootable, bool_flag)
@@ -99,7 +100,7 @@
                         self.volume['id'],
                         'available')
         self.addCleanup(self.client.detach_volume, self.volume['id'])
-        volume = self.client.show_volume(self.volume['id'])
+        volume = self.client.show_volume(self.volume['id'])['volume']
         self.assertIn('attachments', volume)
         attachment = self.client.get_attachment_from_volume(volume)
         self.assertEqual(mountpoint, attachment['device'])
@@ -115,9 +116,9 @@
         # there is no way to delete it from Cinder, so we delete it from Glance
         # using the Glance image_client and from Cinder via tearDownClass.
         image_name = data_utils.rand_name('Image')
-        body = self.client.upload_volume(self.volume['id'],
-                                         image_name,
-                                         CONF.volume.disk_format)
+        body = self.client.upload_volume(
+            self.volume['id'], image_name,
+            CONF.volume.disk_format)['os-volume_upload_image']
         image_id = body["image_id"]
         self.addCleanup(self.image_client.delete_image, image_id)
         self.image_client.wait_for_image_status(image_id, 'active')
@@ -128,12 +129,12 @@
         # Mark volume as reserved.
         body = self.client.reserve_volume(self.volume['id'])
         # To get the volume info
-        body = self.client.show_volume(self.volume['id'])
+        body = self.client.show_volume(self.volume['id'])['volume']
         self.assertIn('attaching', body['status'])
         # Unmark volume as reserved.
         body = self.client.unreserve_volume(self.volume['id'])
         # To get the volume info
-        body = self.client.show_volume(self.volume['id'])
+        body = self.client.show_volume(self.volume['id'])['volume']
         self.assertIn('available', body['status'])
 
     def _is_true(self, val):
@@ -146,7 +147,7 @@
         self.client.update_volume_readonly(self.volume['id'],
                                            readonly)
         # Get Volume information
-        fetched_volume = self.client.show_volume(self.volume['id'])
+        fetched_volume = self.client.show_volume(self.volume['id'])['volume']
         bool_flag = self._is_true(fetched_volume['metadata']['readonly'])
         self.assertEqual(True, bool_flag)
 
@@ -155,7 +156,7 @@
         self.client.update_volume_readonly(self.volume['id'], readonly)
 
         # Get Volume information
-        fetched_volume = self.client.show_volume(self.volume['id'])
+        fetched_volume = self.client.show_volume(self.volume['id'])['volume']
         bool_flag = self._is_true(fetched_volume['metadata']['readonly'])
         self.assertEqual(False, bool_flag)
 
diff --git a/tempest/api/volume/test_volumes_extend.py b/tempest/api/volume/test_volumes_extend.py
index 179f8d3..78f5571 100644
--- a/tempest/api/volume/test_volumes_extend.py
+++ b/tempest/api/volume/test_volumes_extend.py
@@ -34,7 +34,7 @@
         extend_size = int(self.volume['size']) + 1
         self.client.extend_volume(self.volume['id'], extend_size)
         self.client.wait_for_volume_status(self.volume['id'], 'available')
-        volume = self.client.show_volume(self.volume['id'])
+        volume = self.client.show_volume(self.volume['id'])['volume']
         self.assertEqual(int(volume['size']), extend_size)
 
 
diff --git a/tempest/api/volume/test_volumes_get.py b/tempest/api/volume/test_volumes_get.py
index a90f9ca..bceea33 100644
--- a/tempest/api/volume/test_volumes_get.py
+++ b/tempest/api/volume/test_volumes_get.py
@@ -49,7 +49,7 @@
         # Create a volume
         kwargs[self.name_field] = v_name
         kwargs['metadata'] = metadata
-        volume = self.client.create_volume(**kwargs)
+        volume = self.client.create_volume(**kwargs)['volume']
         self.assertIn('id', volume)
         self.addCleanup(self._delete_volume, volume['id'])
         self.client.wait_for_volume_status(volume['id'], 'available')
@@ -60,7 +60,7 @@
         self.assertTrue(volume['id'] is not None,
                         "Field volume id is empty or not found.")
         # Get Volume information
-        fetched_volume = self.client.show_volume(volume['id'])
+        fetched_volume = self.client.show_volume(volume['id'])['volume']
         self.assertEqual(v_name,
                          fetched_volume[self.name_field],
                          'The fetched Volume name is different '
@@ -88,12 +88,13 @@
         new_desc = 'This is the new description of volume'
         params = {self.name_field: new_v_name,
                   self.descrip_field: new_desc}
-        update_volume = self.client.update_volume(volume['id'], **params)
+        update_volume = self.client.update_volume(
+            volume['id'], **params)['volume']
         # Assert response body for update_volume method
         self.assertEqual(new_v_name, update_volume[self.name_field])
         self.assertEqual(new_desc, update_volume[self.descrip_field])
         # Assert response body for show_volume method
-        updated_volume = self.client.show_volume(volume['id'])
+        updated_volume = self.client.show_volume(volume['id'])['volume']
         self.assertEqual(volume['id'], updated_volume['id'])
         self.assertEqual(new_v_name, updated_volume[self.name_field])
         self.assertEqual(new_desc, updated_volume[self.descrip_field])
@@ -108,7 +109,7 @@
         new_v_desc = data_utils.rand_name('@#$%^* description')
         params = {self.descrip_field: new_v_desc,
                   'availability_zone': volume['availability_zone']}
-        new_volume = self.client.create_volume(**params)
+        new_volume = self.client.create_volume(**params)['volume']
         self.assertIn('id', new_volume)
         self.addCleanup(self._delete_volume, new_volume['id'])
         self.client.wait_for_volume_status(new_volume['id'], 'available')
diff --git a/tempest/api/volume/test_volumes_list.py b/tempest/api/volume/test_volumes_list.py
index 3847877..620366a 100644
--- a/tempest/api/volume/test_volumes_list.py
+++ b/tempest/api/volume/test_volumes_list.py
@@ -70,7 +70,7 @@
         cls.metadata = {'Type': 'work'}
         for i in range(3):
             volume = cls.create_volume(metadata=cls.metadata)
-            volume = cls.client.show_volume(volume['id'])
+            volume = cls.client.show_volume(volume['id'])['volume']
             cls.volume_list.append(volume)
             cls.volume_id_list.append(volume['id'])
 
@@ -89,9 +89,10 @@
         """
         if with_detail:
             fetched_vol_list = \
-                self.client.list_volumes(detail=True, params=params)
+                self.client.list_volumes(detail=True, params=params)['volumes']
         else:
-            fetched_vol_list = self.client.list_volumes(params=params)
+            fetched_vol_list = self.client.list_volumes(
+                params=params)['volumes']
 
         # Validating params of fetched volumes
         # In v2, only list detail view includes items in params.
@@ -116,7 +117,7 @@
     def test_volume_list(self):
         # Get a list of Volumes
         # Fetch all volumes
-        fetched_list = self.client.list_volumes()
+        fetched_list = self.client.list_volumes()['volumes']
         self.assertVolumesIn(fetched_list, self.volume_list,
                              fields=self.VOLUME_FIELDS)
 
@@ -124,14 +125,14 @@
     def test_volume_list_with_details(self):
         # Get a list of Volumes with details
         # Fetch all Volumes
-        fetched_list = self.client.list_volumes(detail=True)
+        fetched_list = self.client.list_volumes(detail=True)['volumes']
         self.assertVolumesIn(fetched_list, self.volume_list)
 
     @test.idempotent_id('a28e8da4-0b56-472f-87a8-0f4d3f819c02')
     def test_volume_list_by_name(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         params = {self.name: volume[self.name]}
-        fetched_vol = self.client.list_volumes(params=params)
+        fetched_vol = self.client.list_volumes(params=params)['volumes']
         self.assertEqual(1, len(fetched_vol), str(fetched_vol))
         self.assertEqual(fetched_vol[0][self.name],
                          volume[self.name])
@@ -140,7 +141,8 @@
     def test_volume_list_details_by_name(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         params = {self.name: volume[self.name]}
-        fetched_vol = self.client.list_volumes(detail=True, params=params)
+        fetched_vol = self.client.list_volumes(
+            detail=True, params=params)['volumes']
         self.assertEqual(1, len(fetched_vol), str(fetched_vol))
         self.assertEqual(fetched_vol[0][self.name],
                          volume[self.name])
@@ -148,7 +150,7 @@
     @test.idempotent_id('39654e13-734c-4dab-95ce-7613bf8407ce')
     def test_volumes_list_by_status(self):
         params = {'status': 'available'}
-        fetched_list = self.client.list_volumes(params=params)
+        fetched_list = self.client.list_volumes(params=params)['volumes']
         self._list_by_param_value_and_assert(params)
         self.assertVolumesIn(fetched_list, self.volume_list,
                              fields=self.VOLUME_FIELDS)
@@ -156,7 +158,8 @@
     @test.idempotent_id('2943f712-71ec-482a-bf49-d5ca06216b9f')
     def test_volumes_list_details_by_status(self):
         params = {'status': 'available'}
-        fetched_list = self.client.list_volumes(detail=True, params=params)
+        fetched_list = self.client.list_volumes(
+            detail=True, params=params)['volumes']
         for volume in fetched_list:
             self.assertEqual('available', volume['status'])
         self.assertVolumesIn(fetched_list, self.volume_list)
@@ -166,7 +169,7 @@
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         zone = volume['availability_zone']
         params = {'availability_zone': zone}
-        fetched_list = self.client.list_volumes(params=params)
+        fetched_list = self.client.list_volumes(params=params)['volumes']
         self._list_by_param_value_and_assert(params)
         self.assertVolumesIn(fetched_list, self.volume_list,
                              fields=self.VOLUME_FIELDS)
@@ -176,7 +179,8 @@
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         zone = volume['availability_zone']
         params = {'availability_zone': zone}
-        fetched_list = self.client.list_volumes(detail=True, params=params)
+        fetched_list = self.client.list_volumes(
+            detail=True, params=params)['volumes']
         for volume in fetched_list:
             self.assertEqual(zone, volume['availability_zone'])
         self.assertVolumesIn(fetched_list, self.volume_list)
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index 5203444..5e8c44c 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -270,7 +270,7 @@
     def test_list_volumes_with_nonexistent_name(self):
         v_name = data_utils.rand_name('Volume')
         params = {self.name_field: v_name}
-        fetched_volume = self.client.list_volumes(params=params)
+        fetched_volume = self.client.list_volumes(params=params)['volumes']
         self.assertEqual(0, len(fetched_volume))
 
     @test.attr(type=['negative'])
@@ -279,14 +279,14 @@
         v_name = data_utils.rand_name('Volume')
         params = {self.name_field: v_name}
         fetched_volume = \
-            self.client.list_volumes(detail=True, params=params)
+            self.client.list_volumes(detail=True, params=params)['volumes']
         self.assertEqual(0, len(fetched_volume))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('143b279b-7522-466b-81be-34a87d564a7c')
     def test_list_volumes_with_invalid_status(self):
         params = {'status': 'null'}
-        fetched_volume = self.client.list_volumes(params=params)
+        fetched_volume = self.client.list_volumes(params=params)['volumes']
         self.assertEqual(0, len(fetched_volume))
 
     @test.attr(type=['negative'])
@@ -294,7 +294,7 @@
     def test_list_volumes_detail_with_invalid_status(self):
         params = {'status': 'null'}
         fetched_volume = \
-            self.client.list_volumes(detail=True, params=params)
+            self.client.list_volumes(detail=True, params=params)['volumes']
         self.assertEqual(0, len(fetched_volume))
 
 
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 5860501..0196d89 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -178,7 +178,7 @@
         snapshot = self.create_snapshot(self.volume_origin['id'])
         # NOTE(gfidente): size is required also when passing snapshot_id
         volume = self.volumes_client.create_volume(
-            snapshot_id=snapshot['id'])
+            snapshot_id=snapshot['id'])['volume']
         self.volumes_client.wait_for_volume_status(volume['id'], 'available')
         self.volumes_client.delete_volume(volume['id'])
         self.volumes_client.wait_for_resource_deletion(volume['id'])
diff --git a/tempest/api/volume/v2/test_volumes_list.py b/tempest/api/volume/v2/test_volumes_list.py
index d1eb694..274482b 100644
--- a/tempest/api/volume/v2/test_volumes_list.py
+++ b/tempest/api/volume/v2/test_volumes_list.py
@@ -47,7 +47,7 @@
         cls.metadata = {'Type': 'work'}
         for i in range(3):
             volume = cls.create_volume(metadata=cls.metadata)
-            volume = cls.client.show_volume(volume['id'])
+            volume = cls.client.show_volume(volume['id'])['volume']
             cls.volume_list.append(volume)
             cls.volume_id_list.append(volume['id'])
 
@@ -71,8 +71,8 @@
                       'sort_dir': sort_dir,
                       'sort_key': sort_key
                       }
-            fetched_volume = self.client.list_volumes(detail=True,
-                                                      params=params)
+            fetched_volume = self.client.list_volumes(
+                detail=True, params=params)['volumes']
             self.assertEqual(limit, len(fetched_volume),
                              "The count of volumes is %s, expected:%s " %
                              (len(fetched_volume), limit))
@@ -123,7 +123,7 @@
 
         while True:
             # Get a list page
-            response = method(return_body=True, params=params, **kwargs)
+            response = method(params=params, **kwargs)
 
             # If we have to check ids
             if remaining is not None: