You can sell SSL certificates and ispmanager modules through WHMCS
We have upgraded ispmanager's connectivity with WHMCS billing systems: From now on, not only licenses, but also ispmanager modules and SSL certificates can be sold via WHMCS. You don't need an API for that: Download the integration tool, set it up in your billing system, and configure the resale option. See the documentation for step-by-step configuration guidance:
WHMCS resale option for ispmanager
Ispmanager services that can be sold via WHMCS
Ispmanager licenses can be offered as a product on its own, or as an add-on to a VPS or dedicated server.
The Dr.Web antiviral kit scans the file system, identifies a malicious code, and fixes the problem.
The DDoS-Guard module operates as a reverse proxy server, protecting the server from DDoS attacks of any magnitude.
SSL certificates issued by the major certification centers: Sectigo (formerly Comodo), GlobalSign, AlfaSSL, RapidSSL, Thawte.
Module for selling hosting via WHMCS
We also offer our partners the WHMCS module for reselling hosting services. Setting up a simple integration, your users will be able to order hosting on a server with ispmanager via billing.
Ispmanager hosting reselling module for WHMCS, documentation