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Sentry

Sentry

by Drawned_ • Downloads: 0 • Followers: 0
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Sentry Logo

Sentry

Sentry is a 100% modular Minecraft Mod and Plugin offering advanced security modules (client blocking, item control, exploits patcher, ... and more!), real-time notifications (with external integrations (e.g., Discord)), server management tools, and more. Sentry ensures your server stays secure and efficient.

Plugin

Minecraft 1.8 - 26.3

bukkit spigot paper purpur folia

Mod

Minecraft 1.21.11

fabric fabric-api

What is Sentry?

Sentry is the ultimate next-generation security mod and plugin for your Minecraft server — giving you real peace of mind so you can focus on building an community instead of fighting off threats. It intelligently blocks hacked clients and malicious mods, stops exploits, prevents bots and VPN abuse, detects cheaters, and logs everything important.

All of this runs smoothly with minimal resource usage, whether you're running a small survival world or a busy public network.

Modules

Check all the 11 modules Sentry currently have.

Fog of War

This module's name comes from the same anticheat method, the "Fog of War". This module allows the possibility of completely blocking and hiding other players from getting information/packets when they are hidden behind a wall or out of sight.

This completely blocks any way of players, even using cheats like Wallhacks/PlayerESP/X-Ray to see and track other players behind blocks.

Fog of War

Full Video Demo

This module requires Sentry Prime! More information at the bottom of the page.

Hack Blocker

The most recent module, adds the possibility of blocking the most popular hacked clients and these cheating mods:

  • Freecam
  • Wurst Client*
  • LiquidBounce*
  • Meteor Client
  • AutoClicker Mod
  • AutoClicker-Fabric Mod
  • FDP Client
  • Advanced XRay Mod
  • XRay Mod
  • Freecam Mod (Kapiteon)
  • Freecam Mod (Zergatul)
  • WorldTools Mod
  • Iris Shaders
  • Crystal Macro
  • Item Scroller
  • Auto Totem Mod
  • Silly's Auto Totem Mod
  • Cheat Utils
  • SeedCrackerX
  • Xenon Client
  • Health Indicators
  • ReplayMod
  • Flashback
  • Accurate Block Placement Reborn
  • UI Utils (CevAPI's)

Hack Blocker

This module requires Sentry Prime! More information at the bottom of the page.

Client Blocker

Sentry can block any player trying to join your server using any of the listed clients and mods below.

  • JourneyMap
  • Forge
  • Fabric
  • NeoForge
  • Vanilla
  • World Downloader
  • Badlion Client
  • Better Sprinting Mod
  • Lunar Client
  • LabyMod
  • 5zig
  • ModernFix
  • Curios
  • AppleSkin
  • Rift
  • Configured Mod
  • Fast Workbench
  • Caelus
  • Placebo
  • Marlow's Crystal Optimizer

If you’re looking for even more options, Sentry Prime includes experimental features that expand compatibility and control, covering a wide range of clients and mods such as Essential, Distant Horizons, Jade, Xaero’s Minimap, and many more! It also gives access to the Hack Blocker module.

Anti-BOT

Sentry also offers a brand new module, the Anti-Bot! It does as the name says, detects unusual amounts of connections on your server and blocks everything, keeping admins up-to-date on what is happening each second. This module is 100% configurable. As the same as the other modules, you can change the full configuration to better fit your server! Not convinced? Here is a real case scenario, with Sentry blocking more than 5000 bots under a minute:

Item Control

With Sentry, you can control and block dangerous items, like items containing unsafe Enchantment levels (above Vanilla), items with modified attributes and potions containing non-vanilla effects.

Anti-VPN

Sentry provides a free* Anti-VPN protection service for your server, block any players trying to evade server bans.

Command Blocker

With the Command Blocker module, you can block any dangerous command from players, like /plugins, /about and more! You can add your own commands with your own Sentry actions.

Tab Complete Blocker

With this module, you can block any commands that are shown to players when they try to view your server commands, you can control every command using a custom group system.

Force-OP Protection

Sentry blocks any unauthorized players from obtaining OP. This module is extra useful for Creative mode servers, where players might exploit game features like signs to gain OP. When using this module, players must be explicitly added to a whitelist inside the plugin to be OP.

IP Whitelist

With this module, you can whitelist or blacklist any players from joining the server based on IPs instead of usernames, providing extra security for your server.

Security Patches

Sentry also provides a lot of security patches and miscellaneous protections to your server, adding extra layers of protection on everything.

Lockdown Protection

Sentry also provides a new feature for your server called Lockdown, with just one single command you can entirely prevent players from joining in the server temporarily.

... and more!

Sentry is constantly evolving with updates that bring new features, essential patches, and significant improvements. Helping server owners from the entire world.


Check out Sentry in action!

modrinth-gallery

Sentry Prime

Standard Sentry already offers a wide range of powerful features, but with Sentry Prime you unlock the full experience. Sentry Prime introduces advanced and experimental features, including the ability to block these popular mods: Distant Horizons, Xaero's Minimap, Xaero's World Map, Just Enough Items, Simple Voice Chat, Jade and Essential Mod. (and of course, supports the plugin development!)

prime-singular

Version compatibility

Plugin

Sentry is compatible with Folia, Spigot, Paper (and any other forks) servers running versions from 1.8 to 26.2.

Mod

Sentry is compatible with FabricMC servers, running 1.21.11. Requires Fabric API and at least Fabric Loader 0.18.3.


Support my work

You can support me by getting Sentry Prime, or by donating through any of the links below!


All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
1.21.11
Fabric
16h ago 1
26.3 26.2 26.1.x +14
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.11
Fabric
16h ago 1
26.2 26.1.x 1.21.x +13
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.11
Fabric
16h ago 1
26.2 26.1.x 1.21.x +13
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.2 26.1.x 1.21.x +13
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.11
Fabric
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1.x 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
26.1 1.21.x 1.20.x +12
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Folia Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Paper Purpur Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Paper Spigot
16h ago 1
1.21.x 1.20.x 1.19.x +11
Bukkit Paper Spigot
16h ago 1
[1.5.6-fabric] Sentry 1.5.6 by Drawned_ on Oct 15, 2026
Download
## Hack Blocker
  • Added compatibility to block UI Utils
  • Note: Only UI Utils from CevAPI is currently supported.
  • Added ReplayMod
  • Added Flashback
  • Added Accurate Block Placement Reborn

## Fabric specific
  • Fixed issues with Client Blocker:
  • Payload channels were not being registered correctly in some specific Fabric versions
  • Fixed issues with Hack Blocker:
  • Network optimizations
  • Fixed issues with AntiBot:
  • Fixed schedulers
  • Fixed check order of AntiBot + IP-Whitelist
  • Improved default AntiBot kick messages

## Plugin specific
  • Fixed issues with Hack Blocker:
  • Bedrock players were not able to run commands in some specific scenarios
[1.5.6-plugin] Sentry 1.5.6 by Drawned_ on Oct 15, 2026
Download
## Hack Blocker
  • Added compatibility to block UI Utils
  • Note: Only UI Utils from CevAPI is currently supported.
  • Added ReplayMod
  • Added Flashback
  • Added Accurate Block Placement Reborn

## Fabric specific
  • Fixed issues with Client Blocker:
  • Payload channels were not being registered correctly in some specific Fabric versions
  • Fixed issues with Hack Blocker:
  • Network optimizations
  • Fixed issues with AntiBot:
  • Fixed schedulers
  • Fixed check order of AntiBot + IP-Whitelist
  • Improved default AntiBot kick messages

## Plugin specific
  • Fixed issues with Hack Blocker:
  • Bedrock players were not able to run commands in some specific scenarios
[1.5.4-fabric] 1.5.4-fabric by Drawned_ on Oct 15, 2026
Download
## Fixes
  • Fixed critical issue with Hack Blocker not allowing specific users to use commands
  • Fabric: Fixed issue with Fog of War not correctly hiding players
  • Fixed Hack Blocker detection radius

## Hack Blocker: Improvements
  • The module has been improved to only run the detections one time, instead of showing multiple inventories to players.
[1.5.4-plugin] 1.5.4-plugin by Drawned_ on Oct 15, 2026
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## Fixes
  • Fixed critical issue with Hack Blocker not allowing specific users to use commands
  • Fabric: Fixed issue with Fog of War not correctly hiding players
  • Fixed Hack Blocker detection radius

## Hack Blocker: Improvements
  • The module has been improved to only run the detections one time, instead of showing multiple inventories to players.
[1.5.2-fabric] 1.5.2-fabric by Drawned_ on Oct 15, 2026
Download
# New Module: Fog of War
Added a new module called "**Fog of War**" (inspired by anticheat-methods by the same name), this module allows Sentry to completely block and hide other players from getting information and packets about other players when they are hidden behind a wall or at out of sight.

This completely removes any way of players that could use Wallhacks/PlayerESP/X-Rays to see and track other players behind blocks.

  • This module requires Sentry Prime.
  • In the plugin version, requires PacketEvents to be installed.

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/5h1NxsRzeR8" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

## Features
  • Finally added /sentry reload, please remember that some critical configurations need a full server restart to apply.

## Hack Blocker
  • Added support to block the 'Health Indicators' mod

## Fixes
  • Fixed the alternative method not working.
  • Fixed Anti-VPN to use better and native methods for completely async requests
  • Fixed hack-blocker and fog-of-war throwing errors when you do not have Sentry Prime, now a cool message is sent instead of a full error.
  • Added some useful comments for anti-bot.yml
  • Added some useful comments for hack-blocker.yml
  • Added some useful comments for op-protection.yml

## Plugin: Fixes
  • Fixed messages not being colored correctly
[1.5.2-plugin] 1.5.2-plugin by Drawned_ on Oct 15, 2026
Download
# New Module: Fog of War
Added a new module called "**Fog of War**" (inspired by anticheat-methods by the same name), this module allows Sentry to completely block and hide other players from getting information and packets about other players when they are hidden behind a wall or at out of sight.

This completely removes any way of players that could use Wallhacks/PlayerESP/X-Rays to see and track other players behind blocks.

  • This module requires Sentry Prime.
  • In the plugin version, requires PacketEvents to be installed.

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/5h1NxsRzeR8" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

## Features
  • Finally added /sentry reload, please remember that some critical configurations need a full server restart to apply.

## Hack Blocker
  • Added support to block the 'Health Indicators' mod

## Fixes
  • Fixed the alternative method not working.
  • Fixed Anti-VPN to use better and native methods for completely async requests
  • Fixed hack-blocker and fog-of-war throwing errors when you do not have Sentry Prime, now a cool message is sent instead of a full error.
  • Added some useful comments for anti-bot.yml
  • Added some useful comments for hack-blocker.yml
  • Added some useful comments for op-protection.yml

## Plugin: Fixes
  • Fixed messages not being colored correctly
# Sentry is now available on Fabric!
Sentry has a new beta build for Fabric dedicated servers, you can check it out here:
https://modrinth.com/plugin/sentry-plugin/version/1.5.0-fabric

## Major API Overhaul
  • Completely changed how the API and Events works, check the documentation for help.

## Fixes
  • Fixed a lot of typos
  • Fixed PlayerManager's API
  • Fixed Item Control misbehaving with item attributes

## Prime
  • Fixed and added possibility of alternate endpoint, for users with servers hosted in China, Iran, Russia or Turkmenistan
First beta build for the Fabric version of Sentry!

Includes everything the Bukkit plugin version already had.
Keep in mind this build is in BETA, so expect bugs and report them directly at the SquarePlugins discord.

For now, the mod only runs on a dedicated Fabric server, you can install on a client but the mod will not do anything client-side.
## New on Hack Blocker
  • Added new feature to hide the "ugly" signs when testing a player, by adding [PacketEvents](https://modrinth.com/plugin/packetevents) to the server, all detection signs will not be visible anymore for other players.

## Fixes
  • Fixed false positives on high ping players

## Support for Stripe
  • Added Stripe as a new payment method to buy monthly subscriptions or lifetime licenses. More information here - https://ko-fi.com/drawned
## Fixes
  • Fixed memory leak in the discord webhooks integration
  • Fixed discord webhooks being sent in a synchronous thread instead of asynchronous

## Misc
  • Fixed typo in the main config.yml file
## Hack Blocker
  • Added support to block these 2 new clients/mods:
  • Xenon Client**
  • SeedCrackerX**
  • Added new option to change the checking method in hack-blocker.yml:
  • You can now switch between "JOIN" and "MOVEMENT" in the config, this allows better control of when the player should be checked upon joining.

## Item Control
  • Updated to work in newer 26.x+ versions
  • Fixed issues with the unsafe potion detection in newer versions
[1.4.3] Sentry 1.4.3 by Drawned_ on Oct 15, 2026
Download
## Fixes: Hack Blocker
  • Addresses all recent issues with the Hack Blocker module
  • Fixes Sentry leaving signs of checked players
  • Possible fix to bad caching when players relog too fast on 'multithreaded-based fork' platforms

## Misc
  • Fixed some issues with servers running older version (<1.13)

## API Changes
  • Removed old ClientTriggerEvent
  • Added ClientBlockerEvent
  • Added HackBlockerEvent
[1.4.2] 1.4.2 - Fixes by Drawned_ on Oct 15, 2026
Download
## Hack Blocker Module
  • Added support to block CheatUtils mod.

## Misc
  • Fixed Bedrock compatibility not working for some players
  • Fixed issues with Anti-VPN detection
## Hack Blocker: New clients added
  • Added support to block these new mods:
  • Crystal Macro
  • Item Scroller
  • Auto Totem
  • Silly's Auto Totem

## Fixes
  • Fixed error when trying to check players on Anti-VPN module

## API
  • Bumped version to 1.4.1
## Developer API
Sentry finally has a fully functional developer API! Available at GitHub, more information below:

## Improvements: Anti-VPN
  • Now using async HTTP requests to fix some performance issues

## Fixes: Hack Blocker
  • Added +1s delay to check players when logging in
## Fixes: Hack Blocker
  • Fixed critical issue of signs appearing and staying after a player is checked

## Compatibility
  • Added official 26.1.2 support
## Fixes: Hack Blocker
  • Added **Floodgate** support to fix some issues players had when using GeyserMC
  • Bedrock players (through Geyser/Floodgate) are ignored and can join the server now

  • Added and fixed **Canvas** (Folia fork) support

  • Fixed detection **issues** on servers running 1.16.5 - 1.18
## Hack Blocker
  • Added support to block Iris Shaders

## Misc
  • Internal code improvements for better performance
## New: Features for Hack Blocker
  • Added WorldGuard compatibility, players are now not going to be message-spammed when Sentry checks them.
  • Added new option "check-world-change", to re-check players when they change worlds, defaults to "false"

## Fixes
  • Fixed GeyserMC compatibility issues

## Fixes
  • Fixed OP protection not auto-allowing server operators
  • Improved performance of bStats
## Fixes
  • Fixed detected hacked clients not being reset when a player rejoins the server

## Features: Hack Blocker module
  • Added new option to block the "WorldTools" mod, to prevent players from downloading the server world.
  • Added new option to block the "Freecam server detection bypass" mod, they are not undetectable anymore.

## Improvements
  • Improved anonymous bStats metrics
## Fixes
  • Updated NBTEditor class to the latest release to fix some issues with Item Control on newer versions
  • Fixed some missing plugin log messages
## Features: New mods to hack-blocker module
  • Added these cheating mods to the module:
  • Advanced X-Ray Mod
  • Xray Mod
  • Freecam by kapiteon
  • Freecam by zergatul

## Features: GeyserMC support
  • Bedrock players are not going to be checked by hack-blocker module now.

## Added
  • Added hacked clients list to `/sentry player <player>`

## Fixes
  • Fixed module loading multiple background tasks when Sentry Prime is activated
  • Fixed duplicate hacked client names on hack-blocker module
  • Fixed DistantHorizons blocking on older Minecraft versions
  • Fixed permission bypass not working on the new Modern Brand method on client-blocker module
  • Fixed missing space on a log message
## Fixes:
  • Fixed issue when running actions on a player that is offline on all modules 'on-detect'
  • Added possibility of detecting multiple mods on client-blocker and hack-blocker
  • Fixed wrong debug message on hack-blocker

## Performance improvements
  • Moved some internal variables to cache

## Features: Modern Brand
  • Added new "Modern Brand" method on client-blocker, this finally fixes the Fabric detection on newer Minecraft versions
  • Enabled by default, it also allows more accurate detection on some other modloaders and modified clients.
![Fabric blocking](https://cdn.modrinth.com/data/cached_images/51c0c77f701e34820171794544d0bf315dd402a0_0.webp)

## Features: Item Control Whitelist
  • Added new "whitelist" method on item-control module.
``yaml
# Item whitelist, items listed here are not going to be checked by Sentry.
# https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Material.html
whitelist:
  • BARRIER
``
# New Module: Hack Blocker
This module finally adds the possibility of blocking the most common hacks and hacked mods out there, like **Freecam**, **LiquidBounce**, **Wurst**, **Meteor Client** and some more mods!

This module requires your server to be running at least Minecraft 1.16.5+ and PaperMC (or other forks.)
It also requires Sentry Prime, more info here - https://squareplugins.gitbook.io/sentry/prime
  • 1.21.11 support

# Anti-Bot Module
New module added!

This module finally adds the possibility of blocking bots and attacks.
Here is a cool video showing an example of how it looks!
<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/73-chNs1vU8" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
  • Performance improvements
  • Enhanced plugin stability
  • Fixed and enhanced plugin first time run message

  • Added "info" as a subcommand for "player"

  • Experimental 1.21.8+ support
# New feature added: Lockdown!
The main command is:

`/lockdown [reason]`

~~(not /sentry lockdown)~~ - It allows you to lock the server temporarily, kick all the online players and only allow specific players with the 'sentry.bypass.lockdown' permission to join the server.

## Fixes
  • Fixed legacy versions issue with the "sentry.command" permission.
  • Removed sentry.command as a permission requirement.

## Changes
  • Enhanced "notifications off" reminder to be more direct and just better in general.
  • Enhanced the warning and notifications message format.

  • Fixed minecart blocking submodule.

  • Implemented a temporary "workaround" fix to try detecting badlion clients again.

  • New alias to the license-key command: licensekey.
  • Enhanced config.yml comments.
  • Changed integrations command messages
  • Changed some comments in client-blocker.yml
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