Products Tez Documentation Android APIs Documentation Samples Android sample code Sample code for Tez in-app payments API is available on GitHub. 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 March 29, 2018.