Minecraft economy plugin generator: design your server's money system

An economy looks simple until players probe its edges. Balances must survive restarts, newcomers need a starting amount, and /pay or /eco must work on players who are offline.

Store amounts as whole cents or BigDecimal so thousands of payments never drift. /pay must refuse negative values, self-payments and missing funds, and check and move the balance in one step so two quick commands cannot spend the same coins twice. Write these rules into your description.

Vault stores no money. It is a shared interface: one plugin provides the economy, and shops, jobs or land-claim plugins read and change balances through it without caring where they are saved.

Tell the generator which role you want. A provider registers its own Economy implementation, which makes your currency the server's currency. A consumer uses whatever economy is installed, such as the one bundled with EssentialsX. Either way the Vault API is added at compile time, but the Vault plugin itself must be in your plugins folder.

The usual formats are an admin /shop menu, a /sell command for farms, chest shops run by players and an auction house with timed listings.

Chest-menu shops are where duplication bugs hide. The plugin must cancel every click and drag in the menu, shift-clicks and number keys included, and identify shop items by a hidden data tag rather than a display name anyone can copy with an anvil. For player shops, decide who may open the stock chest and where expired auction items go when the seller is offline.

Money enters through faucets (mob kills, jobs, selling crops, daily rewards) and leaves through sinks (shop purchases, taxes, auction fees). When faucets outrun sinks, prices climb and new players never catch up.

Keep every number in config.yml with a reload command, watch /baltop for a few weeks and start payouts low: raising them later is easier than taking money back. A new sink, such as a weekly tax above a threshold, is one modification request away.

YAML files suit a small community, SQLite handles thousands of accounts in one file, and MySQL fits if you already run a database. In every case, saves should run asynchronously from an in-memory cache, and /baltop should be served from a cached ranking. On Folia, pick Folia as the target so the code uses its region-based scheduling.

Before launch, start the plugin on a real test server from the editor: try a negative /pay, spam-click the shop, restart and check the balances. Then ask for fixes in plain words, like "add a 3 second cooldown to /pay", and roll back through version history if a change goes wrong.