> ## Documentation Index
> Fetch the complete documentation index at: https://www.plain.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Help center

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[Plain's help center](https://plain.support.site/article/help-center) lets you publish self-serve articles for your customers, hosted either on a Plain subdomain or on your own custom domain.

The help center API covers managing the *content* of a help center programmatically:

* **Articles** — individual help pages with HTML content
* **Article groups** — folders that organise articles in the navigation
* **The navigation index** — the ordered tree of groups and articles that drives the help center sidebar

Use the API when you want to keep articles in sync with a docs-as-code workflow in your own git repo, or to bulk-author content from another source.

<Note>
  Help centers themselves (name, subdomain, branding, access, custom domains) are created and configured in the Plain app under **Settings → Help center**. The API only covers managing content within an existing help center.
</Note>

The mutations below require the following permissions:

* `helpCenter:edit`

The read queries require:

* `helpCenter:read`