Joomla is a long-standing open-source CMS with a native REST API since version 4.

How Sorank connects: via Make.com (webhook bridge). Joomla exposes an API with an endpoint to create blog posts, so each article Sorank generates is sent to a Make.com scenario through a webhook, and Make publishes it to Joomla using a dedicated Make.com app. Sorank has no native Joomla connector, but the webhook plus Make route automates publishing end to end.

Public API: Yes · Dedicated Make.com app: Yes · Create-blog-post endpoint: Yes · API docs: https://manual.joomla.org/docs/4.4/general-concepts/webservices/