Can I Integerate wordpress site to freshdesk

Zammad is what we utilise. It's a significant improvement over WebHelpDesk (not saying much there). It includes a very clean UI, Google and SAML integration/login, LDAP sync, a built-in wiki (though we don't use it; instead, we use DokuWiki), and a chat function that can be integrated in other websites.

We self-host for free, and it is installable using Apt, making deployment a breeze.