The Account Management API allows you to manage the custom subdomain for the URL used to access your Sumo Logic account. For more information, see Manage Organization.
Refer to Getting Started for Sumo Logic API Authentication, Endpoints, and Security.
Sumo Logic has several deployment types, which vary by geographic location and the date an account is created. Select the documentation link below that corresponds to your deployment. If you're not sure, see How to determine your endpoint.