MaterialsStockMarket
MaterialsStockMarket allows you to simulate "commodity trading" on your Minecraft server! You can add up to 45 items to the nice looking buy/sell GUI. Ofcourse, you as admin can decide what the current buy and sell prices are.

UPDATE 2.0 IS OUT NOW!

WARNING: This plugin depends on EssentialsX! Make sure to install EssentialsX for a correct working of MaterialsStockMarket.

Download EssentialsX (2.19.2 recommended): https://www.spigotmc.org/resources/essentialsx.9089/

Permissions
If you want to give a player access to the trading GUI, you have to give him just one permission: MaterialsStockMarket.open . It is recommended to give the player access to 'Essentials.balance'. This way, the player is able to check his current balance.

Change items/prices
If you want to add/remove items or change the prices, you have to edit the config.yml file. This file is automatic generated by adding the plugin (.jar) to your server plugins folder. Since version 2.0, it is also possible to change the buy/sell prices in-game.

The default config.yml
If you would like to reset your config.yml, please use the one from the GitHub Repository.

The source code and more information can be found on GitHub: https://github.com/JeromeNL/MaterialsStockMarket