This post was originally posted in the support section, I moved it believing this was a better place for this kind of question. I'm trying to find a way to integrate an external web application hosted under the same domain as a xenforo install into xenforo authentication system. I've looked around and found a number of posts: https://xenforo.com/community/threads/external-login.91144/ https://xenforo.com/community/threads/login-logout-register-from-outside-xenforo.65878/#post-709906 https://xenforo.com/community/threads/how-to-create-a-bridge.28515/ https://xenforo.com/community/resources/kotomi-generic-script-bridge.122/ However everything appears somewhat dated and I'm hoping to avoid needing to test all of them in the hopes on solution works. Is there currently a generally accepted way to hook into xenforo's authentication system? Does anyone know if any of the threads above still provide relevant information?