The Google Admin SDK allows developers to write applications to manage G Suite domains, migrate from and integrate with existing IT infrastructure, create users, update settings, audit activity, and more.
Migrating to G Suite
The Groups Migration API simplifies the process of migrating your existing groups users to G Suite.
Admin SDK APIs subject to the G Suite Admin Terms of Service
The following Admin SDK APIs are subject to the G Suite Admin Terms of Service found at https://developers.google.com/admin-sdk/admin-api-terms.html: