Lilend's Simple Economy (LSE)
Version: 1.1 | Language: Kotlin (JVM 21) | Platform: Paper / Purpur 1.21+ | Author: lilend | API: LSEAPI, Vault, PlaceholderAPI

A lightweight, secure, modern economy plugin for Minecraft Paper 1.21+ servers.

Features

Player balances (YAML / MySQL / MariaDB / SQLite)
Physical check items (right-click to redeem via GUI)
Player-to-player payments with confirmation GUI
Balance leaderboard (/baltop)
Admin commands (add, remove, set, reload)
Transaction tax system (configurable rate & per-feature)
Auto-save mechanism (configurable interval)
Vault API hook (QuickShop, ChestShop, GriefPrevention, etc.)
PlaceholderAPI expansion (%lse_balance%, %lse_balancetop_1%, etc.)
Public developer API (LSEAPI object)
Fully customizable messages with & color codes and placeholders
Per-command permissions (default true or op)
Toggleable features (checks, transfers, tax)
Transaction logging with daily rotation
Security validation (overflow protection, NaN checks, balance caps)
Compact number format: 1K, 1M, 1B, 1T ... Dd (Duodesillion)
Database support: YAML (default), MySQL, MariaDB, SQLite (v1.1)

Commands
/balance or /bal - Show your balance - lse.balance
/balance - Show another player's balance - lse.balance.others
/pay - Send money to a player - lse.pay
/check - Create a physical check - lse.check
/baltop or /top - Balance leaderboard - lse.baltop
/lse add - Add money to a player - lse.lse.add
/lse remove - Remove money from a player - lse.lse.remove
/lse set - Set a player's balance - lse.lse.set
/lse balance [player] - View any player's balance - lse.lse.balance
/lse reload - Reload config, messages & storage - lse.lse.reload

Permissions
lse.balance - true - Check your balance
lse.balance.others - true - Check others' balances
lse.pay - true - Send money to players
lse.check - true - Create physical checks
lse.baltop - true - View balance leaderboard
lse.lse - op - Admin commands base
lse.lse.add - op - Add money to a player
lse.lse.remove - op - Remove money from a player
lse.lse.set - op - Set a player's balance
lse.lse.balance - op - View any balance via /lse
lse.lse.reload - op - Reload plugin configuration
lse.tax.exempt - op - Exempt from transaction taxes
lse.admin - op - All admin permissions (inherits all lse.lse.*)

Database Support (v1.1)
Three storage backends are supported:

storage:
type: yaml # yaml, mysql, mariadb, sqlite
mysql:
host: localhost
port: 3306
database: minecraft
username: root
password: ""
pool-size: 10
sqlite:
file: data.db

YAML (default): balances.yml, no extra dependencies
MySQL / MariaDB: HikariCP connection pool, high performance
SQLite: Single file, no setup required

Use /lse reload to switch storage types (auto-saves before switching).

Installation

Download LilendsSimpleEconomy-1.1.jar
Place it in your server's plugins/ folder
(Optional) Install Vault.jar for cross-plugin economy support
(Optional) Install PlaceholderAPI for placeholder expansion
Restart or reload your server
Edit config.yml and messages.yml to your liking
Run /balance to verify

Changelog

v1.1

MySQL, MariaDB and SQLite database support (HikariCP connection pool)
/lse reload now also reloads balance manager and storage
Check item lore now reads from messages.yml (fully customizable)
Storage connection leak fixed on reload
Modular StorageAdapter architecture for easy backend switching

v1.0 - Initial release

Player balances with YAML persistence
Physical check system (right-click redeem with GUI)
Player-to-player payments with confirmation GUI
Balance leaderboard (/baltop)
Admin commands (/lse add/remove/set/balance/reload)
Vault API integration & PlaceholderAPI expansion
Transaction tax system & auto-save mechanism
Compact number format (K, M, B, T ... Dd)
Fully customizable messages & thread-safe balance management
Security validation (overflow, NaN, rounding)
Transaction logging with daily rotation

lilend's Simple Economy

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