Grim AnticheatPlugins · 1.8 – 26.xFully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.21 anticheat
Free802,610 downloads
The best anticheat for survival servers gens servers and PvP servers with updates every month for as many servers we can make it for
Direct download from Modrinth · 17 downloads
Krynthex AC is a plugin for Paper / Spigot servers, made by VoidByte. The best anticheat for survival servers gens servers and PvP servers with updates every month for as many servers we can make it for.
It supports Minecraft 1.20 – 26.x. It has been downloaded 17 times on Modrinth. That puts it at #91 of the 131 protection and land claim plugins listed here. The last update came out on Nov 9, 2026.
Krynthex AC has had 3 releases on Modrinth since Nov 3, 2026. 3 of them came out in the past year. The newest is 7.0.0, released on Nov 4, 2026. It is made for Minecraft 1.20 – 1.21.11. It runs on Bukkit, Paper and Spigot. The download is 322 KB.
| Version | Released | Minecraft | Type |
|---|---|---|---|
7.0.0 | Nov 4, 2026 | 1.20 – 1.21.11 | Release |
6.8.0 | Nov 4, 2026 | 26.1, 26.1.1, 26.1.2 | Beta |
6.7.0 | Nov 3, 2026 | 1.20 – 1.21.11 | Release |
The commands named on the Modrinth page of Krynthex AC:
/acPermission nodes named there, to give with a plugin like LuckPerms:
krynthexac.adminkrynthexac.alertskrynthexac.bankrynthexac.bypassMovement • Combat • Packets
By Void Byte
A Minecraft Java anticheat for Paper and Spigot, with staff alerts, player investigation tools and an in-game configuration menu.
Review suspicious activity, adjust check settings, and choose how your server responds.
PacketEvents is required. Choose compatible releases for your server’s Minecraft and Java versions.
📦 Installation
Check the plugin’s status:
/ac status
Open the configuration menu:
/ac config
When updating, back up your KRYNTHEX data folder and replace the old JAR. Keep only one KRYNTHEX JAR installed.
Use a full restart instead of /reload.
⚙️ Configuration & shadow mode
Open the configuration menu:
/ac config
Browse detection modules, adjust thresholds, change messages and configure supported responses.
Fresh installations start with shadow mode enabled and automatic punishments disabled.
Test your settings and review findings before enabling automatic actions. Enforcement depends on the check, its settings and safety conditions. Some checks remain review-only.
Existing installations keep their saved settings when updating.
🤝 GrimAC & Vulcan
KRYNTHEX can run alongside GrimAC or Vulcan. Both are optional, separately installed plugins.
When either is enabled, KRYNTHEX blocks its own native automatic punishments and lagbacks.
KRYNTHEX can still run observations, send qualifying alerts and relay supported companion alerts. Manual staff actions remain available.
Manage GrimAC or Vulcan’s punishments through that plugin’s settings.
Replace <player> with the player’s Minecraft name.
🔔 Staff alerts
Enable your alerts:
/ac alerts on
Disable your alerts:
/ac alerts off
Show extra alert details:
/ac staffview on
Return to compact alerts:
/ac staffview off
Hide review-only observations:
/ac alerts observations off
Restore your notification defaults:
/ac alerts reset
Each staff member has their own notification preferences. These do not change the server’s detection settings.
🎯 Watch specific players
Add a player to your watch list:
/ac watch <player>
Filter alerts to watched players:
/ac watchmode on
Receive alerts for everyone again:
/ac watchmode off
Clear your list and disable filtering:
/ac watch clear
Adding a player does not enable filtering automatically.
🔍 Player investigation
View a player summary:
/ac inspect <player>
Review movement diagnostics:
/ac inspect <player> movement
View protocol information:
/ac inspect <player> network
Review recent findings:
/ac history <player>
Check detection and alert eligibility:
/ac diagnose <player>
An alert gives staff something to investigate. It does not prove a player is cheating.
🏷️ Client brands
View a player’s reported client brand:
/ac brand <player>
View additional brand information:
/ac brand <player> details
Review brand changes during the connection:
/ac brand <player> history
Browse online players’ reported brands:
/ac brands
Client brands are self-reported and can be spoofed. A Fabric or Forge brand does not reveal installed mods.
A brand name alone is not evidence of cheating.
🔑 Permissions
Administration access:
krynthexac.admin
Receive staff alerts:
krynthexac.alerts
Additional permission required for manual bans:
krynthexac.ban
Exemption from checks:
krynthexac.bypass
Only give bypass permission to players you intend to exempt.
📋 What to include
Keep server passwords and other credentials out of reports.
🎬 Record an issue
Start a recording before reproducing the issue:
/ac record <player> start
Reproduce the problem, then stop the recording or let it finish:
/ac record <player> stop
Once saved, review the latest recording:
/ac recordings summary latest
Share recordings with trusted staff.
Written by VoidByte. Read it with pictures on Modrinth.
Make sure your server runs Paper and Spigot on Minecraft 1.20 – 26.x.
Download the .jar file from Modrinth and put it in the plugins folder of your server.
Restart the server. Avoid /reload, many plugins do not handle it well.
Type /plugins in the console: Krynthex AC should be listed in green. Its config files are created in the plugins folder on the first start.
Full guide: How to install plugins on a Minecraft server
| Resource | Downloads | Versions | Last update | Price |
|---|---|---|---|---|
| Krynthex ACthe one you looked at | 17 | 1.20 – 26.x | 1 day ago | Free |
| Grim AnticheatAoElite | 803K | 1.8 – 26.x | 2 days ago | Free |
 Lightning Grim AnticheatAxionize | 164K | 1.8 – 26.x | Oct 1, 2026 | Free |
 Intave AnticheatDarkAndBlue | 3,723 | 1.8 – 26.x | 7 days ago | Free |
Yes. Krynthex AC supports Minecraft 26.x. All supported versions: 26.x, 1.21, 1.20.
Yes. Krynthex AC is free to download from Modrinth.
Krynthex AC runs on Paper and Spigot servers.
Yes. The last update came out in the past day.
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