diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 0062c1e..51a03f5 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -52,7 +52,7 @@
     @test.idempotent_id('51717b38-bdc1-458b-b636-1cf82d99f62f')
     def test_list_servers_by_admin(self):
         # Listing servers by admin user returns empty list by default
-        body = self.client.list_servers_with_detail()
+        body = self.client.list_servers(detail=True)
         servers = body['servers']
         self.assertEqual([], servers)
 
@@ -61,7 +61,7 @@
         # Filter the list of servers by server error status
         params = {'status': 'error'}
         self.client.reset_state(self.s1_id, state='error')
-        body = self.non_admin_client.list_servers(params)
+        body = self.non_admin_client.list_servers(**params)
         # Reset server's state to 'active'
         self.client.reset_state(self.s1_id, state='active')
         # Verify server's state
@@ -77,7 +77,7 @@
         # Listing servers by admin user with all tenants parameter
         # Here should be listed all servers
         params = {'all_tenants': ''}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
         servers_name = map(lambda x: x['name'], servers)
 
@@ -91,14 +91,14 @@
         # List the primary tenant but get nothing due to odd specified behavior
         tenant_id = self.non_admin_client.tenant_id
         params = {'tenant_id': tenant_id}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
         self.assertEqual([], servers)
 
         # List the admin tenant which has no servers
         admin_tenant_id = self.client.tenant_id
         params = {'all_tenants': '', 'tenant_id': admin_tenant_id}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
         self.assertEqual([], servers)
 
@@ -118,10 +118,10 @@
         self.assertEqual(server['status'], 'ACTIVE')
         hostname = server[self._host_key]
         params = {'host': hostname}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
         nonexistent_params = {'host': 'nonexistent_host'}
-        nonexistent_body = self.client.list_servers(nonexistent_params)
+        nonexistent_body = self.client.list_servers(**nonexistent_params)
         nonexistent_servers = nonexistent_body['servers']
         self.assertIn(test_server['id'], map(lambda x: x['id'], servers))
         self.assertNotIn(test_server['id'],
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index 8b0e1a4..ea5f142 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -91,7 +91,7 @@
     @test.idempotent_id('585e934c-448e-43c4-acbf-d06a9b899997')
     def test_list_servers_with_detail(self):
         # The created server should be in the detailed list of all servers
-        body = self.client.list_servers_with_detail()
+        body = self.client.list_servers(detail=True)
         servers = body['servers']
         found = any([i for i in servers if i['id'] == self.server['id']])
         self.assertTrue(found)
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 326334c..6d546d8 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -92,7 +92,7 @@
     def test_list_servers_filter_by_image(self):
         # Filter the list of servers by image
         params = {'image': self.image_ref}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1['id'], map(lambda x: x['id'], servers))
@@ -103,7 +103,7 @@
     def test_list_servers_filter_by_flavor(self):
         # Filter the list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertNotIn(self.s1['id'], map(lambda x: x['id'], servers))
@@ -114,7 +114,7 @@
     def test_list_servers_filter_by_server_name(self):
         # Filter the list of servers by server name
         params = {'name': self.s1_name}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -125,7 +125,7 @@
     def test_list_servers_filter_by_server_status(self):
         # Filter the list of servers by server status
         params = {'status': 'active'}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1['id'], map(lambda x: x['id'], servers))
@@ -139,7 +139,7 @@
         self.client.stop(self.s1['id'])
         self.client.wait_for_server_status(self.s1['id'],
                                            'SHUTOFF')
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         self.client.start(self.s1['id'])
         self.client.wait_for_server_status(self.s1['id'],
                                            'ACTIVE')
@@ -153,21 +153,21 @@
     def test_list_servers_filter_by_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 1}
-        servers = self.client.list_servers(params)
+        servers = self.client.list_servers(**params)
         self.assertEqual(1, len([x for x in servers['servers'] if 'id' in x]))
 
     @test.idempotent_id('b1495414-2d93-414c-8019-849afe8d319e')
     def test_list_servers_filter_by_zero_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 0}
-        servers = self.client.list_servers(params)
+        servers = self.client.list_servers(**params)
         self.assertEqual(0, len(servers['servers']))
 
     @test.idempotent_id('37791bbd-90c0-4de0-831e-5f38cba9c6b3')
     def test_list_servers_filter_by_exceed_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 100000}
-        servers = self.client.list_servers(params)
+        servers = self.client.list_servers(**params)
         all_servers = self.client.list_servers()
         self.assertEqual(len([x for x in all_servers['servers'] if 'id' in x]),
                          len([x for x in servers['servers'] if 'id' in x]))
@@ -177,7 +177,7 @@
     def test_list_servers_detailed_filter_by_image(self):
         # Filter the detailed list of servers by image
         params = {'image': self.image_ref}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
 
         self.assertIn(self.s1['id'], map(lambda x: x['id'], servers))
@@ -188,7 +188,7 @@
     def test_list_servers_detailed_filter_by_flavor(self):
         # Filter the detailed list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
 
         self.assertNotIn(self.s1['id'], map(lambda x: x['id'], servers))
@@ -199,7 +199,7 @@
     def test_list_servers_detailed_filter_by_server_name(self):
         # Filter the detailed list of servers by server name
         params = {'name': self.s1_name}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -210,7 +210,7 @@
     def test_list_servers_detailed_filter_by_server_status(self):
         # Filter the detailed list of servers by server status
         params = {'status': 'active'}
-        body = self.client.list_servers_with_detail(params)
+        body = self.client.list_servers(detail=True, **params)
         servers = body['servers']
         test_ids = [s['id'] for s in (self.s1, self.s2, self.s3)]
 
@@ -224,7 +224,7 @@
     def test_list_servers_filtered_by_name_wildcard(self):
         # List all servers that contains '-instance' in name
         params = {'name': '-instance'}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -235,7 +235,7 @@
         part_name = self.s1_name[6:-1]
 
         params = {'name': part_name}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -248,7 +248,7 @@
         regexes = ['^.*\-instance\-[0-9]+$', '^.*\-instance\-.*$']
         for regex in regexes:
             params = {'name': regex}
-            body = self.client.list_servers(params)
+            body = self.client.list_servers(**params)
             servers = body['servers']
 
             self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -259,7 +259,7 @@
         part_name = self.s1_name[-10:]
 
         params = {'name': part_name}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -282,7 +282,7 @@
         else:
             msg = "Skipped until bug 1450859 is resolved"
             raise self.skipException(msg)
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -304,7 +304,7 @@
             params = {'ip': ip}
         else:
             params = {'ip6': ip}
-        body = self.client.list_servers(params)
+        body = self.client.list_servers(**params)
         servers = body['servers']
 
         self.assertIn(self.s1_name, map(lambda x: x['name'], servers))
@@ -315,5 +315,5 @@
     def test_list_servers_detailed_limit_results(self):
         # Verify only the expected number of detailed results are returned
         params = {'limit': 1}
-        servers = self.client.list_servers_with_detail(params)
+        servers = self.client.list_servers(detail=True, **params)
         self.assertEqual(1, len(servers['servers']))
diff --git a/tempest/api/compute/servers/test_list_servers_negative.py b/tempest/api/compute/servers/test_list_servers_negative.py
index fd4d902..def6cf5 100644
--- a/tempest/api/compute/servers/test_list_servers_negative.py
+++ b/tempest/api/compute/servers/test_list_servers_negative.py
@@ -68,7 +68,7 @@
     def test_list_servers_by_non_existing_image(self):
         # Listing servers for a non existing image returns empty list
         non_existing_image = '1234abcd-zzz0-aaa9-ppp3-0987654abcde'
-        body = self.client.list_servers(dict(image=non_existing_image))
+        body = self.client.list_servers(image=non_existing_image)
         servers = body['servers']
         self.assertEqual([], servers)
 
@@ -77,7 +77,7 @@
     def test_list_servers_by_non_existing_flavor(self):
         # Listing servers by non existing flavor returns empty list
         non_existing_flavor = 1234
-        body = self.client.list_servers(dict(flavor=non_existing_flavor))
+        body = self.client.list_servers(flavor=non_existing_flavor)
         servers = body['servers']
         self.assertEqual([], servers)
 
@@ -86,7 +86,7 @@
     def test_list_servers_by_non_existing_server_name(self):
         # Listing servers for a non existent server name returns empty list
         non_existing_name = 'junk_server_1234'
-        body = self.client.list_servers(dict(name=non_existing_name))
+        body = self.client.list_servers(name=non_existing_name)
         servers = body['servers']
         self.assertEqual([], servers)
 
@@ -95,21 +95,21 @@
     def test_list_servers_status_non_existing(self):
         # Return an empty list when invalid status is specified
         non_existing_status = 'BALONEY'
-        body = self.client.list_servers(dict(status=non_existing_status))
+        body = self.client.list_servers(status=non_existing_status)
         servers = body['servers']
         self.assertEqual([], servers)
 
     @test.idempotent_id('12c80a9f-2dec-480e-882b-98ba15757659')
     def test_list_servers_by_limits(self):
         # List servers by specifying limits
-        body = self.client.list_servers({'limit': 1})
+        body = self.client.list_servers(limit=1)
         self.assertEqual(1, len([x for x in body['servers'] if 'id' in x]))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('d47c17fb-eebd-4287-8e95-f20a7e627b18')
     def test_list_servers_by_limits_greater_than_actual_count(self):
         # List servers by specifying a greater value for limit
-        body = self.client.list_servers({'limit': 100})
+        body = self.client.list_servers(limit=100)
         self.assertEqual(len(self.existing_fixtures), len(body['servers']))
 
     @test.attr(type=['negative'])
@@ -117,28 +117,29 @@
     def test_list_servers_by_limits_pass_string(self):
         # Return an error if a string value is passed for limit
         self.assertRaises(lib_exc.BadRequest, self.client.list_servers,
-                          {'limit': 'testing'})
+                          limit='testing')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('62610dd9-4713-4ee0-8beb-fd2c1aa7f950')
     def test_list_servers_by_limits_pass_negative_value(self):
         # Return an error if a negative value for limit is passed
         self.assertRaises(lib_exc.BadRequest, self.client.list_servers,
-                          {'limit': -1})
+                          limit=-1)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('87d12517-e20a-4c9c-97b6-dd1628d6d6c9')
     def test_list_servers_by_changes_since_invalid_date(self):
         # Return an error when invalid date format is passed
+        params = {'changes-since': '2011/01/01'}
         self.assertRaises(lib_exc.BadRequest, self.client.list_servers,
-                          {'changes-since': '2011/01/01'})
+                          **params)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('74745ad8-b346-45b5-b9b8-509d7447fc1f')
     def test_list_servers_by_changes_since_future_date(self):
         # Return an empty list when a date in the future is passed
         changes_since = {'changes-since': '2051-01-01T12:34:00Z'}
-        body = self.client.list_servers(changes_since)
+        body = self.client.list_servers(**changes_since)
         self.assertEqual(0, len(body['servers']))
 
     @test.attr(type=['negative'])
@@ -146,7 +147,7 @@
     def test_list_servers_detail_server_is_deleted(self):
         # Server details are not listed for a deleted server
         deleted_ids = [s['id'] for s in self.deleted_fixtures]
-        body = self.client.list_servers_with_detail()
+        body = self.client.list_servers(detail=True)
         servers = body['servers']
         actual = [srv for srv in servers
                   if srv['id'] in deleted_ids]
diff --git a/tempest/scenario/test_large_ops.py b/tempest/scenario/test_large_ops.py
index ffb35fb..1a18be5 100644
--- a/tempest/scenario/test_large_ops.py
+++ b/tempest/scenario/test_large_ops.py
@@ -102,7 +102,7 @@
             **create_kwargs)
         # needed because of bug 1199788
         params = {'name': name}
-        server_list = self.servers_client.list_servers(params)
+        server_list = self.servers_client.list_servers(**params)
         self.servers = server_list['servers']
         for server in self.servers:
             # after deleting all servers - wait for all servers to clear
diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index 2ecb2d4..7263014 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -149,28 +149,21 @@
         self.validate_response(schema.delete_server, resp, body)
         return service_client.ResponseBody(resp, body)
 
-    def list_servers(self, params=None):
+    def list_servers(self, detail=False, **params):
         """Lists all servers for a user."""
 
         url = 'servers'
+        _schema = schema.list_servers
+
+        if detail:
+            url += '/detail'
+            _schema = schema.list_servers_detail
         if params:
             url += '?%s' % urllib.urlencode(params)
 
         resp, body = self.get(url)
         body = json.loads(body)
-        self.validate_response(schema.list_servers, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def list_servers_with_detail(self, params=None):
-        """Lists all servers in detail for a user."""
-
-        url = 'servers/detail'
-        if params:
-            url += '?%s' % urllib.urlencode(params)
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.validate_response(schema.list_servers_detail, resp, body)
+        self.validate_response(_schema, resp, body)
         return service_client.ResponseBody(resp, body)
 
     def wait_for_server_status(self, server_id, status, extra_timeout=0,
diff --git a/tempest/stress/cleanup.py b/tempest/stress/cleanup.py
index 29c4401..d9b430e 100644
--- a/tempest/stress/cleanup.py
+++ b/tempest/stress/cleanup.py
@@ -24,7 +24,7 @@
 def cleanup():
     admin_manager = clients.AdminManager()
 
-    body = admin_manager.servers_client.list_servers({"all_tenants": True})
+    body = admin_manager.servers_client.list_servers(all_tenants=True)
     LOG.info("Cleanup::remove %s servers" % len(body['servers']))
     for s in body['servers']:
         try: