Use the following parameters in combination on any keystone command to specify which version of the API to use: --os-endpoint. The endpoint to use instead of the one in the service catalog. Defaults to env[OS_SERVICE_ENDPOINT]. The keystone client detects the version of the API from this parameter. --os-auth_url. The Identity Service endpoint to use for authentication. Defaults to env[OS_AUTH_URL]. --os-identity-api-version. The Identity Service API version. Defaults to env[OS_IDENTITY_API_VERSION] or 2.0. For example, use the following parameters to use API v3: $ --os-auth_url "http://15.253.57.115:35357/v3" --os-identity-api-version 3 Use the following parameters to use API v2.0: $ --os-auth_url "http://15.253.57.115:35357/v2.0" --os-identity-api-version 2.0