To authenticate against a Networking endpoint, instantiate a neutronclient.v_2_0.client.Client object: from os import environ as env from neutronclient.v2_0 import client as neutronclient neutron = neutronclient.Client(auth_url=env['OS_AUTH_URL'], username=env['OS_USERNAME'], password=env['OS_PASSWORD'], tenant_name=env['OS_TENANT_NAME'], region_name=env['OS_REGION_NAME']) You can also authenticate by explicitly specifying the endpoint and token: from os import environ as env import keystoneclient.v2_0.client as ksclient from neutronclient.v2_0 import client as neutronclient keystone = ksclient.Client(auth_url=env['OS_AUTH_URL'], username=env['OS_USERNAME'], password=env['OS_PASSWORD'], tenant_name=env['OS_TENANT_NAME'], region_name=env['OS_REGION_NAME']) endpoint_url = keystone.service_catalog.url_for(service_type='network') token = keystone.auth_token neutron = neutronclient.Client(endpoint_url=endpoint_url, token=token)