Hi I have used Trello a lot but never really used Adonis, but from what I can tell Adonis does not support Trello’s API if you would like to use Trello’s API for something like that I recommend doing it separately from Adonis. Something like making your own ranking system from which it would be really easy to keep track of your ranks and everyone in them.
Here is the Module -PS it goes in ServerScriptService Trello API
Trello is no longer a viable source for third-party settings as the new parent company of Trello has changed the ratelimit on roblox severely. If you wish to use Google Sheets as a third-party database instead, I would suggest looking at this: