SSO for Zendesk and PhpFox

I would like my users using phpfox to be able to use my support system using sso with Zendesk. If they have a session on my community I would like to have a account created for the user automatically when they visit the support area. So they do not need to sign up gor a new service. Their details from my user tables for my community offer the necessary information to create a user account for the user to use Zendesk. There is documentation that Zendesk provides but I cannot do it myself.