oxd OAuth client by Gluu is client software designed to secure and integrate server-side web applications with an OAuth 2.0 Authorization Server, such as the Gluu Server. It simplifies the process of securing and integrating applications by implementing open standards supported by the Gluu Server. oxd is recommended for its ease of use and regular updates that incorporate the latest OAuth 2.0 security knowledge. It supports various programming languages and platforms, providing libraries for PHP, Python, Java, Node, Ruby, C#, Perl, and Go. For other languages, oxd offers a simple JSON/REST API. Additionally, oxd plugins are available for popular applications like Wordpress, Drupal, Magento, OpenCart, SugarCRM, SuiteCRM, Roundcube, Shopify, and Kong, with more being added, including MatterMost, RocketChat, NextCloud, and Liferay. oxd subscriptions enhance the project by providing end-to-end support with knowledge of both client and server software.