diff --git a/osc_lib/api/auth.py b/osc_lib/api/auth.py
index 5d5064b..3963d0f 100644
--- a/osc_lib/api/auth.py
+++ b/osc_lib/api/auth.py
@@ -101,7 +101,7 @@ def check_valid_authentication_options(options, auth_plugin_name):
     msgs = []
 
     # when no auth params are passed in, user advised to use os-cloud
-    if not options.auth:
+    if not options.auth and auth_plugin_name != 'none':
         msgs.append(_(
             'Set a cloud-name with --os-cloud or OS_CLOUD'
         ))
diff --git a/osc_lib/clientmanager.py b/osc_lib/clientmanager.py
index afcda30..c7d0398 100644
--- a/osc_lib/clientmanager.py
+++ b/osc_lib/clientmanager.py
@@ -202,9 +202,15 @@ class ClientManager(object):
             self._auth_ref = self.auth.get_auth_ref(self.session)
         return self._auth_ref
 
+    def _override_for(self, service_type):
+        key = '%s_endpoint_override' % service_type.replace('-', '_')
+        return self._cli_options.config.get(key)
+
     def is_service_available(self, service_type):
         """Check if a service type is in the current Service Catalog"""
-
+        # If there is an override, assume the service is available
+        if self._override_for(service_type):
+            return True
         # Trigger authentication necessary to discover endpoint
         if self.auth_ref:
             service_catalog = self.auth_ref.service_catalog
@@ -226,6 +232,11 @@ class ClientManager(object):
     def get_endpoint_for_service_type(self, service_type, region_name=None,
                                       interface='public'):
         """Return the endpoint URL for the service type."""
+        # Overrides take priority unconditionally
+        override = self._override_for(service_type)
+        if override:
+            return override
+
         if not interface:
             interface = 'public'
         # See if we are using password flow auth, i.e. we have a
diff --git a/osc_lib/tests/test_clientmanager.py b/osc_lib/tests/test_clientmanager.py
index 36ac56b..0f32fbe 100644
--- a/osc_lib/tests/test_clientmanager.py
+++ b/osc_lib/tests/test_clientmanager.py
@@ -419,6 +419,31 @@ class TestClientManager(utils.TestClientManager):
         self.assertEqual(client_manager.auth.project_id, fakes.PROJECT_ID)
         self.assertTrue(client_manager._auth_setup_completed)
 
+    def test_client_manager_none_auth(self):
+        # test token auth
+        client_manager = self._make_clientmanager(
+            auth_args={},
+            auth_plugin_name='none',
+        )
+        self.assertIsNone(
+            client_manager.get_endpoint_for_service_type('compute'))
+
+    def test_client_manager_endpoint_override(self):
+        # test token auth
+        client_manager = self._make_clientmanager(
+            auth_args={},
+            config_args={'compute_endpoint_override': 'http://example.com',
+                         'foo_bar_endpoint_override': 'http://example2.com'},
+            auth_plugin_name='none',
+        )
+        self.assertEqual(
+            'http://example.com',
+            client_manager.get_endpoint_for_service_type('compute'))
+        self.assertEqual(
+            'http://example2.com',
+            client_manager.get_endpoint_for_service_type('foo-bar'))
+        self.assertTrue(client_manager.is_service_available('compute'))
+
 
 class TestClientManagerSDK(utils.TestClientManager):
 
diff --git a/releasenotes/notes/auth-type-none-d96760912605f822.yaml b/releasenotes/notes/auth-type-none-d96760912605f822.yaml
new file mode 100644
index 0000000..fad2291
--- /dev/null
+++ b/releasenotes/notes/auth-type-none-d96760912605f822.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixes incorrect error when using ``auth_type: none`` in ``clouds.yaml``.
+  - |
+    Respects the ``<service type>_endpoint_override`` configuration options,
+    similarly to openstacksdk.