
Mods may be added freely but Xbox players can only use mods that are hosted on Mod.io. Mods can be added to your dedicated server through the subscribed mods tab. More detailed information related to Dedicated Servers – Dedicated Servers | Space engineers () Adding Mods – Steam & Xbox

More info about Remote API is on the Space Engineers game page in the section above. As an example, Nitrado integrated the player management for Space Engineers Dedicated servers into their portal and DS owners can control – promote/demote other players that are online there. The Remote API is a way for server providers and experienced users.

(3) Remote API – Server Provider Player Management This step requires a proper http URL, port, and secret key (port and secret key have to be setup in Server Manager before starting DS).Its most common path is …\Program Files (x86)\Steam\steamapps\common\SpaceEngineersDedicatedServer\DedicatedServer64\…).Once promoted, any admin can start using the admin menu directly from the game client.

You can use the Promote button here to assign Admin rights.
