xAntiALT - One Player. One Identity.

Overview
xAntiALT is an enterprise-grade, asynchronous anti-alt account protection plugin designed to prevent players from joining with unauthorized alternate accounts. Built with HikariCP database connection pooling, lock-free thread caching, and Folia/Paper multi-threading compliance, it runs with zero impact on server MSPT/TPS.

✨ Key Features

• ️ Smart Multi-Account Detection — Restrict players to a configurable number of accounts per IP address max accounts per ip.
• ⚡ Zero-Lag Async Processing — All lookups, checks, and database writes run on dedicated asynchronous worker threads.
• Multi-Database Support — Switch seamlessly between SQLite, MySQL, and PostgreSQL with automatic schema creation.
• Integrated VPN & Proxy Detection — Optional live API verification (e.g. vpnapi.io with smart caching to stop botnets and proxy bypasses.
• Anti-Flood Rate Limiting — Protect your login pipeline from connection spam and bot attacks with configurable join rate limits.
• Comprehensive Whitelist System — Easily whitelist legitimate shared connections (siblings, LAN parties, verified staff) using /xalt whitelist
• Discord Webhook Alerts — Send rich, customizable Discord embeds whenever an alt account attempts to connect.
• MiniMessage & Hex Color Support — Complete support for legacy color codes (&a modern Hex colors (&#FF1840, and Adventure MiniMessage.

[HR][/HR]

⚙️ How It Works

1. Player Connection: When a player joins, their UUID and IP are asynchronously evaluated against the database.
2. Account Threshold Check: If the IP exceeds the allowed threshold (max-accounts-per-ip), the account is flagged.
3. Automated Enforcement:
   • If kick-alt: true, the duplicate account is kicked instantly with the custom kick screen showing the original account name.
   • If kick-alt: false, online staff receive real-time admin alerts while the connection is logged.
4. VPN / Proxy Filtering: If enabled, the IP is checked against the proxy detection API and cached for optimal performance.

Commands & Usage

Commands:
/xalt check <player> - Check all linked alt accounts for a player xantialt.check
/xalt lookup <ip> Search all accounts associated with a specific IP address xantialt.check
/xalt whitelist <player> Toggle or add/remove a player from the alt whitelist xantialt.admin
/xalt whitelist List all currently whitelisted accounts xantialt.admin
/xalt reload Reload the plugin configuration and database cache xantialt.reload
/xalt info View the plugin version, database type, and status xantialt.admin

Permissions:
xantialt.admin
xantialt.check
xantialt.reload
xantialt.bypass

‍ Author & Support

• Developer: GodXPro
• Discord: godxpro.exe
• Support: Available via Discord DM