Grace Anticheat
Grace Anticheat is a free, self-hosted anticheat for Java Minecraft servers.
What Grace Anticheat is
Grace Anticheat is a free, self-hosted anticheat for Java Minecraft servers. It targets closet cheating and ghost cheating as well as blatant hacking, using rules-based detection and statistical analysis of player behavior. Servers can run it as a Velocity plugin with a Paper companion plugin, or use a standalone Paper plugin that does not require Velocity. The proxy setup requires Velocity 3.3.0 or later, Paper 1.19 or later, and Java 21 or later. The standalone listing covers Paper for Minecraft Java Edition versions 1.19.x, 1.20.x, and 1.21.x. Grace can alert staff in-game and send formatted embeds to a Discord channel through a webhook. Configuration supports teleporting players back on hard alerts, kicking on action alerts, and optional automatic bans, which are disabled by default. Staff commands provide engine status, player evidence summaries, alert controls, violation history, and configuration reloads. The API, event pipeline, data model, and companion plugin are open source, but detection logic, model weights, and threshold tuning are closed source. Grace is beta 0.1.0 and in active development.
Good
- Free for Java Minecraft servers
- Standalone Paper option does not require Velocity
- Supports in-game and Discord alerts
- Automatic bans are optional and disabled by default
Watch out
- Proxy setup requires Java 21 or later
- Detection logic and model weights are closed source
- Beta 0.1.0 and in active development
Who it suits
Grace suits Java Minecraft server operators looking for a self-hosted anticheat with configurable alerts and enforcement. Operators should check the requirements for the proxy setup or choose the standalone Paper option.
Verdict
Grace offers two deployment options and configurable staff alerts and enforcement for Java Minecraft servers. Its beta status and closed detection logic are important considerations for server operators.
Plans and prices
From Grace Anticheat's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Free anticheat for Java Minecraft servers |
The facts
Each one read from Grace Anticheat's own pages, with the date it was checked.
What it does
- Alerts
- Grace can alert staff in-game and send formatted embeds to a Discord channel using a webhook.checked 7 Oct 2026
- Compatibility
- The standalone listing specifies Paper support for Minecraft Java Edition versions 1.19.x, 1.20.x, and 1.21.x.checked 7 Oct 2026
- Detection
- It uses a rules-based detection pipeline and statistical behavioral analysis.checked 7 Oct 2026
- Enforcement
- Configuration supports rubber-banding on hard alerts, kicking on action alerts, and optional automatic bans, disabled by default.checked 7 Oct 2026
- Proxy architecture
- The proxy setup runs as a Velocity plugin with a Paper companion plugin on the backend server.checked 7 Oct 2026
- Purpose
- Grace is an anticheat for Java Minecraft servers that targets closet cheating and ghost cheating, and also handles blatant hacking.checked 7 Oct 2026
- Requirements
- The proxy setup requires Velocity 3.3.0 or later, Paper 1.19 or later, and Java 21 or later.checked 7 Oct 2026
- Source availability
- The API, event pipeline, data model, and companion plugin are open source, while the detection logic, model weights, and threshold tuning are closed source.checked 7 Oct 2026
- Staff tools
- Commands provide engine status, player evidence summaries, alert controls, violation history, and configuration reloads.checked 7 Oct 2026
- Standalone option
- A standalone Paper plugin is also available and does not require the Velocity plugin.checked 7 Oct 2026
- Status and support
- Grace is beta 0.1.0 in active development; the maker welcomes bug reports and feedback through GitHub Issues.checked 7 Oct 2026
