autolinks support was recently added to the rest api. Announcement: https://github.blog/changelog/2021-08-02-apis-for-autolinks/

This would be super useful to allow automated management of autolinks via API.

Docs: https://docs.github.com/en/rest/reference/repos#autolinks
More info: https://docs.github.com/en/github/administering-a-repository/managing-repository-settings/configuring-autolinks-to-reference-external-resources