Running a tournament? Check /integrity for every player before a match. verified: true means their last session was the official Solar with nothing extra attached. Combat cheats are still your server anticheat's job.
GET/api/v1/players/{uuid}/integrity
Is this player on a verified Solar?
Tells you whether the player's last session used the official Solar build with no blocked mods and no Java agents. Useful for tournaments and ranked queues. The list of mods is never shared.