We are pleased to announce the introduction of Single Sign-On for WHMCS.

In WHMCS 6.2, WHMCS Single Sign-on will allow trusted applications and third parties to authenticate users into a WHMCS installation automatically, without the user having to re-authenticate.

The first example of this is our latest integration with cPanel 54, pictured below.

With WHMCS Single Sign-On and cPanel, your customers can access features and functions of the WHMCS client area directly from within their cPanel control panel. Clicking any link will securely authenticate the user in the background and then redirect them to the requested page.

All of the links you see above are fully customisable, with the ability to turn them on and off individually as well as customise their labels and display order.

Coupled with the cPanel Single Sign-On we launched earlier this year, this is just another step that unifies the WHMCS and cPanel products giving your customers a simpler and more convenient experience with your business and services.



Our Single Sign-On implementation is based on the popular and widely used OAuth 2.0 authorization framework which outlines a secure workflow for accessing user data while protecting their account credentials.

The OAuth 2.0 implementation is also being utilised for OpenID Connect and lays the foundations for our upcoming Client API which will make it possible for even more powerful integrations with third party applications.

What's more, in cPanel 54, users will be able to login to their cPanel accounts using their WHMCS billing login credentials. Neat huh? This is thanks to the introduction of OpenID Connect, an extension of the OAuth 2.0 specification framework, and can be leveraged by any system that supports the OpenID specification. More on this to follow.

Developers, you can start leveraging WHMCS Single Sign-On with the 6.2 Release Candidate out now. Get started today.