⚡ PRAXIC — Server-side Anticheat for Fabric 1.21.1

No client mod required. One jar. Every check enabled by default.

Compatible with Fabric Loader + Fabric API on Minecraft 1.21.1. Open source · Apache 2.0 · Source Code

⚡ 28 Detection Modules

Movement

Combat

World

Client

Each check runs independently — own sensitivity, own cooldown, own response action. Toggle on or off. One config file.

🔮 Smart Engine

• Physics Prediction — Simulates vanilla gravity tick by tick and compares predicted position to actual, catching fly and hover that simple threshold checks miss.
• Lag Compensation — Thresholds scale with each player's latency automatically. No configuration needed.
• Violation Decay — Violation levels decrease over time without new flags, so clean players recover on their own.
• Confidence Scoring — Evidence from multiple checks is weighed together, so isolated incidents do not escalate into punishment.
• Setback — Silent teleport to last safe position instead of disconnect.

⚙️ Actions

Every check carries its own configurable response:

🖥️ Web Dashboard

Local admin panel at 127.0.0.1:8765:

• Live TPS and MSPT — server performance at a glance
• Player profiles — violations, evidence, recent incidents
• Quick actions — reset violations, toggle whitelist, no commands needed
• Incident feed — review flags with context

🔔 Integrations

• Staff Alerts — every flag reaches OP2+ in real time, with cooldown protection
• Discord Webhook — rich embeds with full details, one line in config
• Evidence Store — compact review packets for every flag, saved persistently
• History — per-player violation log that works offline
• Event API — PraxicViolationEvent for custom mod integrations

🔥 REVEX — Escalation Addon

Graduated punishment system built on top of PRAXIC: Warn → 15 min → 1 hour → 1 day → permanent. Fully automatic.

• REVEX on Modrinth
• REVEX on GitHub

💬 Commands

All commands require OP level 2.

🚀 Setup

1. Install Fabric Loader + Fabric API for 1.21.1
2. Drop the jar into mods/
3. Start the server — done.

Config generates at config/praxic.json. Apply changes with /praxic reload.

Active development — detection improves with every release.

Each check runs independently. Own sensitivity, own cooldown, own response action. Toggle on or off. One config file.

🧠 Physics Prediction — Simulates vanilla gravity tick by tick. Compares predicted position to actual. Catches fly and hover that threshold checks miss.

💚 Impulse — Real knockback is not a fly hack. Damage, explosions, wind charges, riptide and a real mace smash get a short pass so fair combat stays quiet.

🛑 Mitigation — Illegal fly, speed, blink, reach, air-place and Wind Charge can be cancelled before they apply. The player rubberbands to last safe ground.

🌐 Lag Compensation — Thresholds scale with each player's latency. No configuration needed.

🔄 Violation Decay — VL decreases over time without new flags. Clean players recover on their own.

↩️ Setback — Silent teleport to last safe position instead of disconnect.

📊 Confidence Scoring — Evidence from multiple checks is weighed together, so isolated incidents do not escalate into punishment.

Every check carries its own configurable response:

A local admin panel at 127.0.0.1:8765:

• Live TPS and MSPT — server performance at a glance
• Player profiles — violations, evidence, recent incidents
• Quick actions — reset violations, toggle whitelist, no commands needed
• Incident feed — review flags with context

📣 Staff Alerts — Every flag reaches OP2+ in real time, with cooldown protection. Player names are clickable — one click opens a full inspect.

💬 Discord Webhook — Rich embeds with full details. One line in config.

📋 Evidence Store — Compact review packets for every flag, saved persistently.

🗂️ History — Per-player violation log that works offline.

🔗 Event API — PraxicViolationEvent for custom mod integrations.

💬 Commands

All commands require OP level 2.

🚀 Setup

1. Install Fabric Loader + Fabric API for 1.21.1

2. Drop the jar into mods/

3. Start the server — done.

Config generates at config/praxic.json. Apply changes with /praxic reload.