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AntiCheatAddition

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What AntiCheatAddition is

AntiCheatAddition is a free, self-hosted anti-cheat extension for Spigot servers. It focuses on cheat classes and player-information leaks that general-purpose anti-cheat tools may not consistently cover. Detection modules address automated inventory interaction, fishing, potion use, tool switching, scaffold behaviour, targeting, packet anomalies, automated behaviour, item duplication, fast hotbar switching, and impossible chat. Sentinel modules identify selected exploit patterns, clients, or modifications. Information-protection controls cover entity visibility, item data, damage indicators, and server branding. Administrators can set violation thresholds, cancellation behavior, and logging, while Bukkit events and a public API support integrations and external modules. PacketEvents is required; ViaVersion, Floodgate, and WorldGuard integrations are available. Modules may be unavailable because of server-version limits, missing integrations, or configuration. The plugin refuses unsupported server versions, and forcing a load may cause runtime errors. It is licensed under GNU General Public License v3.0.

Who it suits

It suits Spigot administrators who need configurable cheat detection and controls over player-visible information. Integrators can use its API and Bukkit events, provided they follow thread-safety requirements.

What it does well

  • Free self-hosted Spigot plugin
  • Broad detection module coverage
  • Configurable thresholds, cancellation, and logging
  • Information-protection controls
  • Public API and Bukkit events

What to know first

  • Requires PacketEvents
  • Unsupported versions refuse to load
  • Modules may be unavailable under some conditions
  • Forcing unsupported loads may cause runtime errors

Verdict

AntiCheatAddition combines detection, exploit identification, information controls, and integration hooks for Spigot servers. Compatibility and dependency requirements should be checked before enabling modules or loading the plugin.

Facts from AntiCheatAddition's own pages

API
The public API lets integrations inspect and adjust violation levels, inspect or change module state, and register external modules. · github.com, 11 Oct 2026
Compatibility limits
Modules may be unavailable because of server-version restrictions, missing optional integrations, or configuration settings. · github.com, 11 Oct 2026
Configuration
Checks are modular and may be unavailable because of server-version restrictions, missing optional integrations, or explicit configuration. · github.com, 11 Oct 2026
Detection
Its detection modules cover automated inventory interaction, fishing, potion use, tool switching, scaffold behaviour, targeting, and packet anomalies. · github.com, 11 Oct 2026
Information protection
Information-protection additions provide entity-visibility, item-data, damage-indicator, and server-brand controls. · github.com, 11 Oct 2026
Integrations
The plugin requires PacketEvents and also integrates with ViaVersion, Floodgate, and WorldGuard. · github.com, 11 Oct 2026
License
The project is licensed under GNU General Public License v3.0. · github.com, 11 Oct 2026
Operational note
Packet processing and some module work can occur away from the Bukkit primary thread, so callers must follow Bukkit API and mutable player-state thread-safety guarantees. · github.com, 11 Oct 2026
Purpose
AntiCheatAddition is a Spigot anti-cheat extension focused on cheat classes and player-information leaks that general-purpose anti-cheat solutions may not consistently address. · github.com, 11 Oct 2026
Sentinel
Sentinel modules address selected exploit patterns and identify clients or modifications. · github.com, 11 Oct 2026
Support
The project directs users to its official Spigot resource for supported releases, administration guidance, and customer support. · github.com, 11 Oct 2026
Support and releases
The repository directs users to the official Spigot resource for supported releases, administration guidance, and customer support. · github.com, 11 Oct 2026
Version compatibility
The plugin refuses to load on unsupported server versions, and the repository warns that forcing it to load may cause runtime errors. · github.com, 11 Oct 2026
Version support
The plugin refuses to load on unsupported server versions, and forcing a load may lead to runtime errors. · github.com, 11 Oct 2026
Violation management
Violation management provides configurable thresholds, cancellation behaviour, logging, and Bukkit events for integrations. · github.com, 11 Oct 2026

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