Umbraco is the leading .NET open-source CMS; its Management API can create content.
How Sorank connects: via Make.com (webhook bridge). Umbraco 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 Umbraco using Make.com's generic HTTP module. Sorank has no native Umbraco connector, but the webhook plus Make route automates publishing end to end.
To validate on a live Umbraco account before promising a turnkey setup. If the create-post call is not available, fall back to Sorank's self-hosted blog.
Public API: Yes · Dedicated Make.com app: No · Create-blog-post endpoint: Yes · API docs: https://docs.umbraco.com/umbraco-cms/reference/management-api