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diff --git a/keystonemiddleware-moon/keystonemiddleware/opts.py b/keystonemiddleware-moon/keystonemiddleware/opts.py
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+# Copyright (c) 2014 OpenStack Foundation.
+#
+# 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.
+
+__all__ = [
+    'list_auth_token_opts',
+]
+
+import copy
+
+import keystonemiddleware.auth_token
+from keystonemiddleware.auth_token import _auth
+from keystonemiddleware.auth_token import _base
+
+auth_token_opts = [
+    (_base.AUTHTOKEN_GROUP,
+     keystonemiddleware.auth_token._OPTS +
+     _auth.AuthTokenPlugin.get_options())
+]
+
+
+def list_auth_token_opts():
+    """Return a list of oslo_config options available in auth_token middleware.
+
+    The returned list includes all oslo_config options which may be registered
+    at runtime by the project.
+
+    Each element of the list is a tuple. The first element is the name of the
+    group under which the list of elements in the second element will be
+    registered. A group name of None corresponds to the [DEFAULT] group in
+    config files.
+
+    This function is also discoverable via the entry point
+    'keystonemiddleware.auth_token' under the 'oslo.config.opts'
+    namespace.
+
+    The purpose of this is to allow tools like the Oslo sample config file
+    generator to discover the options exposed to users by this middleware.
+
+    :returns: a list of (group_name, opts) tuples
+    """
+    return [(g, copy.deepcopy(o)) for g, o in auth_token_opts]