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Frequency

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What Frequency is

Frequency is a free, open-source anticheat project for Spigot servers running Minecraft 1.8.8. Its stated purpose is to give newcomers a place to learn anticheat development, and the project is not recommended for commercial production servers because it has not been properly tested. The system handles packet, rotation, post, and position checks. When a player joins, a channel duplex handler enters the player pipeline to receive packets. Player information is kept in a concurrent hash map keyed by UUID and removed when the player leaves. A check manager supplies that information to checks. An alert manager manages alerts, bans, and broadcasts, while an executor clears older alerts every 9000 milliseconds. Setup uses Maven, with Spigot built separately through BuildTools because of licensing issues. Spigot, Spigot API 1.8.8-R0.1-SNAPSHOT, and MongoDB Java Driver 3.5.0 are provided dependencies. The repository uses the Eclipse Public License 2.0.

Who it suits

Frequency suits developers learning how anticheat systems are structured on Spigot 1.8.8. It is not intended for commercial production-server protection.

What it does well

  • Free plan and open-source repository
  • Supports packet, rotation, post, and position checks
  • Provides alerts, bans, and broadcasts
  • Stores player data by UUID
  • Uses Eclipse Public License 2.0

What to know first

  • Not recommended for commercial production use
  • Supports Spigot and Minecraft 1.8.8
  • Requires separate Spigot BuildTools setup
  • Alerts clear every 9000 milliseconds

Verdict

Frequency offers a focused learning project with several anticheat check types and enforcement actions. Its testing status and narrow Spigot 1.8.8 target make it better suited to study and experimentation than commercial deployment.

Facts from Frequency's own pages

Alerts
The README says alerts, bans, and broadcasts are handled by an alert manager, with alerts and violations cleared every 9000 milliseconds. · github.com, 9 Oct 2026
Alerts and violations
The alert manager handles alert messages, bans, and broadcasts, and an executor clears old alerts every 9000 milliseconds. · github.com, 9 Oct 2026
Checks
The README describes packet, rotation, post, and position check types that receive player data through a check manager. · github.com, 9 Oct 2026
Dependency
The Maven configuration declares Spigot and Spigot API version 1.8.8-R0.1-SNAPSHOT as provided dependencies. · github.com, 9 Oct 2026
Intended use
The project says its main purpose is to provide learning grounds for newcomers to anticheats. · github.com, 9 Oct 2026
License
The repository identifies its license as Eclipse Public License 2.0. · github.com, 9 Oct 2026
Maker
The README says Frequency is mainly developed and maintained by Elevated and Gson, with help from Dawson. · github.com, 9 Oct 2026
Open source
The README describes Frequency as an open source anticheat maintained mainly by Elevated and Gson, with help from Dawson. · github.com, 9 Oct 2026
Other dependencies
The Maven configuration lists MongoDB Java Driver 3.5.0 as a provided dependency. · github.com, 9 Oct 2026
Packet checks
The README describes packet handling that injects a channel duplex handler into a player's pipeline when they join. · github.com, 9 Oct 2026
Packet handling
The packet handler listens through a channel duplex handler injected into a player's pipeline when they join. · github.com, 9 Oct 2026
Player data
Player data is stored in a concurrent hash map by player UUID on joining and removed when the player quits. · github.com, 9 Oct 2026
Production caution
The README says Frequency is not recommended for commercial use on a production server because it has not been properly tested. · github.com, 9 Oct 2026
Production readiness
The README says Frequency is not recommended for commercial use on a production server because it has not been properly tested. · github.com, 9 Oct 2026
Purpose
Frequency is described as a basic anticheat system. · github.com, 9 Oct 2026
Server dependency
The Maven configuration lists Spigot and Spigot API version 1.8.8-R0.1-SNAPSHOT as provided dependencies. · github.com, 9 Oct 2026
Setup
The README instructs developers to load the project as Maven and says the Spigot dependency must be built separately using BuildTools due to licensing issues. · github.com, 9 Oct 2026
Support
The README says contributors will do their best to help people set up and get started, and asks bug reports to include a detailed explanation and evidence when possible. · github.com, 9 Oct 2026

Where Frequency stands on Freedom251

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