I'm looking to buy Xen, the demo was easy enough and XenForo has taken over the internet, used on nearly every forum I've visited in the past several months. One thing I do need to clarify before I jump though.... I intend to use the XenForo user database in my forum as a Master for a a Single Sign-On architecture. Therefore I need a way for other applications to authenticate against it. With SMF, this can be achieved with a query such like this: SELECT `email_address` AS `email` FROM `forum_members` WHERE `member_name` = @a@ AND `passwd` = SHA1(CONCAT(LOWER(@a@), @p@)) Can this or similar be done with XenForo? From what I've Googled, XenForo is not this easy and requires extra APIs and such. However, one of my intended slaves is the Anope IRC services, and this cannot(to my knowledge) use those APIs and requires MySQL.