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GuardAC

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What GuardAC is

GuardAC is a cloud anti-cheat for Minecraft servers that looks for KillAura, aim assist and unusual combat crosshair movement. A server plugin sends the cloud service a short set of movement measurements rather than video, and the system learns each player’s usual mouse style to flag changes during a session. Players install nothing. Staff can receive alerts with a player name and score, review logs, and choose manual or automated enforcement. Configurable thresholds range from alert-only operation to automatic bans; actions include kicks, bans, broadcasts, console commands and optional combat suppression. Replay analysis is also listed. The plugin supports Paper, Spigot, Purpur and Folia servers running Minecraft 1.16 or newer. Servers need Java 17 or newer, while Minecraft 26.1 and 26.2 require Java 25. The service pairs the plugin with a cloud API accessed by API key. A free plan is listed as free, and a free-trial key is available after sign-up without a card.

Who it suits

GuardAC suits Minecraft server operators using Paper, Spigot, Purpur or Folia who want combat detection and configurable staff alerts or enforcement. It may also suit teams that prefer players not to install anti-cheat software.

What it does well

  • Players do not need to install anything.
  • Supports four server platforms from Minecraft 1.16 onward.
  • Thresholds range from alerts to automatic bans.
  • Offers logs, broadcasts, console commands and replay analysis.
  • Free plan listed as free.

What to know first

  • Requires Java 17 or newer on supported servers.
  • Minecraft 26.1 and 26.2 require Java 25.
  • Detection data is sent to GuardAC’s cloud.

Limits

The Free plan is listed as free. The facts do not state a quota or feature limit for that plan.

Plans

PlanBilled and limitsPrice
Freefree key · no card required · limits not publishedFree

As guardac.net lists them, read 14 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open https://guardac.net/ and sign up for a free trial.
  2. Receive the API key issued after sign-up; no card is required.
  3. Install the GuardAC plugin on a Paper, Spigot, Purpur, or Folia server running Minecraft 1.16 or newer.
  4. Use Java 17 or newer, or Java 25 for Minecraft 26.1 and 26.2.
  5. Connect the plugin to the cloud API with the API key.
  6. Set thresholds for alerts or automated enforcement.

GuardAC is a cloud-based Minecraft anti-cheat for server operators focused on combat cheats. It suits teams that want player-free installation and control over how alerts become punishments. Its clear strength is combat-movement detection; servers seeking broad cheat coverage should look elsewhere.

Overview

A plugin on supported servers connects to GuardAC’s cloud API using an API key. Players install nothing. In fights, the plugin sends a short set of crosshair-movement numbers rather than video, and GuardAC learns each player’s usual mouse movement to flag sharp changes during a session. This is a focused approach to combat behavior, not a general-purpose anti-cheat.

Alerts give staff a player name and score, and operators can keep punishments manual or automate them. Configurable thresholds span alert-only monitoring through strict automatic bans, giving moderation teams room to start cautiously and set enforcement to match their policy.

Key features

  • Combat detection: Covers KillAura, aim assist, abnormal combat crosshair movement and sharp changes in player movement style. Replay analysis is supported.
  • Configurable enforcement: Actions include alerts, logs, kicks, bans, broadcasts and console commands, with optional combat suppression. Automation can save staff intervention, but automatic bans make threshold choices consequential.
  • Cloud data flow: The plugin sends movement numbers rather than video. GuardAC collects account and player identifiers, detection events, API-key and plan data, technical server and browser data, and support history. It says it does not share collected data except when legally required, for payment processing, or with user authorization. Its administration uses password hashing and access control but does not guarantee absolute security for data sent over the internet.
  • Support: Support questions go through Telegram at @palasscq, a direct channel for operators to use.

Pricing

GuardAC is freemium, with a Free plan at no cost. A key is issued immediately after sign-up for the free trial, and no card is required. Paid plans can be purchased for 1, 3, 6 or 12 months using SBP or cryptocurrency, and promo codes are supported. Custom pricing applies where no fixed paid price is stated.

The free offer suits operators who want to begin without a payment commitment. Trial length, free-plan caps and paid-plan inclusions are not established here, so compare the terms directly before relying on a particular quota or paid capability.

Platforms

GuardAC is available via API and web, with its game-server plugin supporting Paper, Spigot, Purpur and Folia from Minecraft 1.16 onward. Supported servers require Java 17 or newer; Minecraft 26.1 and 26.2 require Java 25. Check the Java requirement against the server version before adopting it.

Who it's for

GuardAC is best suited to Minecraft server owners whose priority is detecting KillAura and aim assist without asking players to install software, especially teams that want to review alerts before automating punishments. It is a weaker fit for operators who need detection beyond combat behavior or who prefer to keep detection data entirely on their own infrastructure.

Pros and cons

  • Pro: Players need no installation, reducing friction for a server-wide anti-cheat.
  • Pro: Alert-only operation and adjustable thresholds let staff decide how quickly to move from monitoring to enforcement.
  • Pro: The free plan and no-card trial provide a way to start without an upfront payment commitment.
  • Con: Its stated detection focus is combat movement, so it does not serve as a catch-all cheat detector.
  • Con: Player identifiers and detection events are sent into a cloud service, which may not suit operators who require server-local processing.
  • Con: Java 25 is required for Minecraft 26.1 and 26.2, a compatibility requirement operators must account for.

Alternatives

Minecraft Anti-Cheat Plugins is a useful starting point for comparing plugins across the category. Consider MLSAC if you want a free Mini model and web or Windows access. AntiGuard is a free, MIT-licensed Paper/Purpur option for Minecraft 1.20.x on Java 17. CheckHacks is another free option that is always free, with donations optional and no trial. Intave may fit teams seeking movement and combat cheat detection on its free plan, which excludes combat automation detection, build automation detection and priority support. MOG-ANTICHEAT is a free self-hosted alternative. Shard may suit operators who want open-source software they can inspect, self-host or contribute to. ExploitShield is a free self-hosted option for Minecraft 1.17.x–1.21.x on Paper, Spigot or Folia, with Java 17+, PacketEvents 2.13.0+ and ProtocolLib 5.4.0+ required. FoxAddition Anti-Cheat is a free self-hosted server plugin with PacketEvents 2.11.0+ required for the GitHub release instructions.

Verdict

Choose GuardAC if your Minecraft server needs focused combat detection, no player-side installs and a path from staff alerts to automated enforcement. Look elsewhere if you need wider cheat coverage or do not want player identifiers and detection events handled through a cloud API.

Verdict

GuardAC combines server-side combat detection with staff alerts and configurable enforcement. Check the Java requirements and cloud data flow against your server’s setup before choosing it.

Questions

Is GuardAC free?

Yes. Its Free plan is listed as free. A free trial is also available, with a key issued after sign-up and no card required.

Which Minecraft servers does it support?

The plugin supports Paper, Spigot, Purpur, and Folia servers running Minecraft 1.16 and newer.

Do players need to install GuardAC?

No. The anti-cheat runs server-side and in the cloud.

What does GuardAC detect?

It detects KillAura, aim assist, abnormal combat crosshair movement, and sharp changes in a player’s movement style.

How much do paid plans cost?

Paid plans can be purchased for 1, 3, 6, or 12 months. Payment is accepted through SBP or cryptocurrency, and promo codes are supported; no price is given here.

How can I contact support?

Support questions are handled through Telegram at @palasscq.

Facts from GuardAC's own pages

Alert-only mode
Administrators can run alerts without automatic punishment while evaluating detection accuracy. · github.com, 14 Oct 2026
API access
The service uses a cloud API authenticated by an API key configured in the Minecraft plugin. · guardac.net, 14 Oct 2026
Automation
Automation can apply punishments ranging from kicks to bans with an animation. · guardac.net, 30 Sept 2026
Build requirements
Building from source requires JDK 21 or newer and Gradle produces the plugin jar in build/libs. · github.com, 14 Oct 2026
Cross-server reputation
The plugin includes cross-server reputation sharing for suspected cheaters. · github.com, 14 Oct 2026
Data collected
GuardAC collects account identifiers, API-key and plan data, server and browser technical data, player identifiers, detection events and support interaction history. · guardac.net, 30 Sept 2026
Data sharing
The privacy policy says collected data is shared only when legally required, needed for payment processing, or authorized by the user. · guardac.net, 14 Oct 2026
Detection data
During fights, the plugin sends a short list of crosshair-movement numbers rather than video to the GuardAC cloud. · guardac.net, 30 Sept 2026
Detection method
The plugin sends numerical crosshair-movement data to the cloud neural network, which returns a cheating probability. · guardac.net, 14 Oct 2026
Documentation depth
The repository documents installation, configuration files, commands, permissions, placeholders, build steps, dependencies, and supported server versions. · github.com, 14 Oct 2026
Free access
A key is issued immediately after sign-up for the free trial, and no card is required. · guardac.net, 30 Sept 2026
Independent marketplace status
BuiltByBit listed GuardAC version 1.8 on 24 August 2026 as open source, DRM-free, unobfuscated, and not yet rated. · builtbybit.com, 14 Oct 2026
Independent release date
Mineleak lists the resource as created and first released on 16 July 2026. · mineleak.pro, 14 Oct 2026
Installation
Installation consists of downloading one jar, placing it in the server plugins directory, starting once, entering the API key, and running /guard reload. · guardac.net, 14 Oct 2026
Java requirements
Supported servers require Java 17 or newer; Minecraft 26.1 and 26.2 require Java 25. · guardac.net, 30 Sept 2026
KillAura detection
The product targets unusually smooth or mechanically consistent aiming associated with KillAura. · guardac.net, 14 Oct 2026
Licence
The GuardAC plugin repository distributes the software under GNU GPL version 3.0. · github.com, 14 Oct 2026
Limit: cloud dependency
The plugin requires the GuardAC cloud API and an API key whenever aim checking is enabled. · github.com, 14 Oct 2026
Live monitoring
Commands provide live combat monitoring, suspect menus, player profiles, recent results, history, logs, statistics, and health checks. · github.com, 14 Oct 2026
Notable update
The setup page states that the same jar supports Minecraft 26.1 and 26.2, with Java 25 required for those versions. · guardac.net, 14 Oct 2026
Notifications
The independently listed product description advertises Telegram and Discord notifications plus cross-server alerts. · builtbybit.com, 14 Oct 2026
Paid terms
Paid plans can be purchased for 1, 3, 6 or 12 months using SBP or cryptocurrency, and promo codes are supported. · guardac.net, 30 Sept 2026
Personalization
The plugin learns how a player normally moves the mouse and flags changes in that style during a session. · guardac.net, 30 Sept 2026
PlaceholderAPI integration
GuardAC registers its own PlaceholderAPI expansion automatically when PlaceholderAPI is installed. · github.com, 14 Oct 2026

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