VGSources / Best Minecraft Anti-Cheat Plugins / NPN Advanced Packet Protection

NPN Advanced Packet Protection

hangar.papermc.io

Free

What it is

NPN is a lightweight Minecraft server plugin designed to protect against malformed packets, packet abuse, inventory exploits, and protocol manipulation.

From hangar.papermc.io's own pages, read 8 Oct 2026.

Data plate

Price: Free to use
Free plan: Yes
Free trial: Not stated
Runs on: self-hosted
Open source: No
Website: hangar.papermc.io
Architecture: Each protection module has its own session manager, context system, packet trackers, validators, cancel engine, and violation engine.
Beta status: NPN is currently in Beta, with additional protection modules and improvements planned for future releases.
Compatibility: The listing specifies Minecraft 1.20.1–Latest, Java 17 or newer, and Paper, Spigot, Bukkit, or Purpur server software.
Current features: Listed features include WindowClick protection, session-based detection, packet burst analysis, duplicate and replay detection, packet state validation, fingerprinting and configurable thresholds.
Current protections: Listed current features include WindowClick protection, session-based detection, packet burst analysis, duplicate and replay detection, packet state validation, and configurable thresholds.
Dependency: PacketEvents (latest) is required, and the maker says to download it before installing NPN.
Intended servers: The maker lists SMP, survival, PvP, and network environments as suitable uses.
Latest release details: Version 5.0.0 adds memory checks, packet-window statistics, packet context metadata, and configurable memory thresholds.
Checked: 8 Oct 2026

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