⚡ Modern LCAuth Authentication For Premium Minecraft Networks
LCAuth is a next-generation authentication plugin inspired by LimboAuth, designed for modern Minecraft servers and large-scale premium networks. Built with performance, security, and clean UI in mind, LCAuth delivers a smooth and professional login experience for both Java and Bedrock players.

Supporting Standalone servers, BungeeCord, and Velocity, LCAuth is optimized for Minecraft 1.21 → 1.21.11 and built using modern async architecture for maximum performance and low resource usage.

✨ Features
Modern Authentication System

• Secure register/login system
  
  
• BCrypt password encryption
  
  
• Login attempt protection
  
  
• IP registration limits
  
  
• Password strength checking
  
  
• Unsafe password blocker

Premium Auto Login

• Mojang premium account detection
  
  
• Optional premium bypass system
  
  
• Premium account cache system
  
  
• Instant premium auto-login

Floodgate & Geyser Support

• Full Floodgate support
  
  
• GeyserMC compatible
  
  
• Bedrock authentication support
  
  
• Floodgate auth bypass options

Limbo Authentication System

• Lightweight virtual auth world
  
  
• No chunk loading
  
  
• AntiBot optimized
  
  
• Smooth modern auth UI
  
  
• Adventure mode auth system
  
  
• Blindness effect support

Premium UI Experience

• Beautiful centered login screen
  
  
• Animated actionbar countdown
  
  
• Professional auth titles
  
  
• Custom RGB/HEX color support
  
  
• Fully customizable messages

⚙ Fully Configurable
Everything configurable from:

config.yml

Customize:

• messages
  
  
• titles
  
  
• actionbars
  
  
• bossbars
  
  
• sounds
  
  
• auth settings
  
  
• premium settings
  
  
• floodgate settings
  
  
• security settings

Includes 3 Different Jars
LCAuth automatically provides:

Standalone Jar
For:

• Paper
  
  
• Spigot
  
  
• Purpur

BungeeCord Jar
For:

• BungeeCord proxy networks

⚡ Velocity Jar
For:

• Velocity modern proxy networks

ZIP Release Structure
Download package includes:

LCAuth.zip

/standalone/LCAuth-Standalone.jar
/bungee/LCAuth-Bungee.jar
/velocity/LCAuth-Velocity.jar
/config-example/config.yml

Optimized Performance

• Fully async optimized
  
  
• TPS friendly
  
  
• Lightweight architecture
  
  
• Optimized for large servers
  
  
• Fast startup times
  
  
• Low RAM usage

Security Features

• AntiBot protection
  
  
• Packet limiter
  
  
• Session protection
  
  
• Secure authentication handling
  
  
• Password console hiding
  
  
• UUID support

✅ Supported Versions
Minecraft 1.21 → 1.21.11

Supported Platforms

• Paper
  
  
• Spigot
  
  
• Purpur
  
  
• BungeeCord
  
  
• Velocity

☕ Java Version
Java 21

Why LCAuth?
LCAuth combines modern authentication security, premium UI design, Floodgate compatibility, and high-performance async architecture into one complete authentication solution for Minecraft networks. Perfect for Lifesteal, Survival, Practice, BoxPvP, SMP, and large-scale server infrastructures.