See: https://workspace.google.com/marketplace/app/appsheet_for_google_docs/1022526378366 for the public version of this add-on.
This add-on allows you to interact with AppSheet apps directly from Google DocsтДв. It automatically converts AppSheet URLs to smart chips that can expand to display useful app data or can even be used to trigger AppSheet-configured actions without ever leaving the DocтДв.