The /rest/atlassian-connect/1/addons/<addonKey> endpoint is not accessible due to scope restrictions in Forge, and attempting to call it results in a 401 Unauthorized error.
We have several add-ons, and each of them includes a shared menu that allows users to switch between our different apps.
We used that endpoint to determine whether another one of our apps was installed on the Jira instance — so we could either show a link directly to the installed app or, if it wasn’t installed, to its Marketplace listing.
So we are looking for a way how to solve this behaviour in Forge.