It’s a PHP application written based on Laravel that allows site owners to quickly add and activate authentication, authorization, and user management to their website. It’s designed to meet the latest security and code standards and is ready for high availability sites. Although it is written in Laravel, it can be used to provide secure login, authentication, authorization, and full user management for any website running php. Vanguard also comes with a fully documented JSON API that makes it easy to authenticate users from your mobile (or any other) app.