NXAntiCheat
The facts below are what the maker publishes about NXAntiCheat, checked and dated. Our editors have not written about it yet.
The facts
Each one read from NXAntiCheat's own pages, with the date it was checked.
What it does
- Administration
- The /nxac commands list checks, show a player's violation levels and offense count, and reset offense history.checked 11 Oct 2026
- Ban management
- Bans are written to the Paper profile ban list, so Paper's /pardon command works normally.checked 11 Oct 2026
- Build and download
- The README says to build with ./gradlew build and that the compiled JAR is written to build/libs/.checked 11 Oct 2026
- Calibration
- Both checks ship with punishment disabled; the README recommends alert-only operation to collect server data and adjust thresholds before enabling punishments.checked 11 Oct 2026
- Calibration and false positives
- Both checks ship with punishment disabled, and the README warns that latency spikes, low frame rates, and controller input can cause false positives.checked 11 Oct 2026
- Combat checks
- The listed checks analyze attack-interval patterns with click entropy and yaw-delta patterns with rotation quantization.checked 11 Oct 2026
- Commands
- The /nxac commands list checks and thresholds, show a player's violation and offense counts, and clear a player's offense history.checked 11 Oct 2026
- Detection
- Detection uses behavioral analysis of what the server receives, with no client-side component or binary inspection.checked 11 Oct 2026
- False positives
- The README warns that latency spikes, low frame rates, and controller input can produce false positives.checked 11 Oct 2026
- History retention
- Offense history is stored per player UUID in punishments.yml and expires after 120 days.checked 11 Oct 2026
- Intended users
- The project is described for Paper server operators through its server-side plugin description and Paper requirements.checked 11 Oct 2026
- License
- The repository lists the project under the MIT License.checked 11 Oct 2026
- Offense history
- Offense history is stored per UUID in punishments.yml and expires after 120 days; bans use the Paper profile ban list.checked 11 Oct 2026
- Permissions
- The plugin documents admin, alert, and bypass permission nodes, with the first two defaulting to op and bypass defaulting to false.checked 11 Oct 2026
- Product
- NXAntiCheat is a server-side anti-cheat plugin for Paper 1.21.checked 11 Oct 2026
- Punishments
- The listed offense ladder is a kick for offenses one and two, a 30 day ban for offense three, and a permanent ban for offense four.checked 11 Oct 2026
- Requirements
- The plugin requires Paper 1.21 or newer and Java 21.checked 11 Oct 2026
- Violation handling
- Each check accumulates a violation level that decays over time, and punishment triggers only after the configured threshold is crossed.checked 11 Oct 2026
