[Feature Request] Endpoint to fetch application information by ID

[advaith1]

An endpoint similar to Get Current Application Information but for fetching info about any application with its id (without fields that need to be private of course). This would be useful for a few reasons:

• programmatically getting a bot's (estimated) server count, which can already be done manually via the OAuth page (expands on Expose bot's guild count on /oauth2/applications/@me #1628)
• seeing the true owner(s) of a bot, to prevent another user claiming ownership

This could be implemented by:

• expanding the /oauth2/applications/:id endpoint
• adding application/bot data to the Get User endpoint
• adding more data to and allowing bots to use the /applications/:id/public endpoint
• creating a new endpoint

[advaith1]

This would be more useful now because of non-bot slash command applications: if there is no bot user then the application data cannot be fetched (from its id) at all, not even the icon and name.

[Lulalaby]

I agree with this.
Thought about similar.