PlugAC replays every client tick through vanilla movement physics and checks what your players send against it. Speed, fly, aura, reach, scaffold, timer. If a move couldn't happen in vanilla, it never reaches your server.
How it works
Every check is built to stop a real client module, and to stay quiet when a real player lags, gets hit, or lands somewhere strange.
Each client tick runs through the movement engine: keys, sprint, friction, jumps, knockback, effects, water and collisions. A legit client lands on the predicted spot within float noise. Ping and server lag don't change the result.
Fake players nobody can see flash on the crosshair for four ticks. Triggerbots and aim assists hit them, people can't. It only flags when the hits beat that player's own random click rate by a mile.
AimC ships with a model trained on recorded fights, so it works the moment you install it. Next to it, the aim checks look at your players' real mouse sensitivity grid and catch rotations no mouse can make.
Every failed tick is refused on the network thread and the player goes back to the last ground the replay verified. Only the alert is throttled, so spamming a fly toggle gets them nothing.
Checks
Each one can be turned on or off in game with /checks, and each has its own bypass permission.
Staff tools
Alerts tell your staff who, what and where. One click puts them next to the player.
/susEvery flagged player as a head, sorted by flags. Filter by world or check, click to spectate.
/checksTurn any check or whole category on or off in a menu. No config editing, no restart.
hover alertsHover an alert for ping, gamemode, coords, client brand and version. Click it to teleport.
[HACKER]After repeated strong flags, a player glows with a tag only staff can see, and staff get told why.
webhookFlags go to a Discord channel with the player's head and every detail, rate-limited so it never spams.
Example message. Every field and color comes from webhook.yml and can be changed.
Setup
Install PacketEvents, drop in PlugAC, add your license key. Defaults are set for a live server, so there's nothing else you have to change.
With Geyser on the same server, PlugAC installs its own Geyser extension on start. Bedrock moves are checked against Bedrock physics, so they aren't flagged by Java-only checks.
/plugac reload | info | version /sus suspects dashboard /checks check switchboard /pac short for /plugac
PlugAC is on BuiltByBit. Questions before you buy? Ask us on Discord.