Products G Suite Developer Admin SDK Alert Center API Guides Pricing All use of Alert Center API is free of charge. However, a G Suite account is required for all functionality. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated February 9, 2019.