What is GrzybcioRynek?

What the GrzybcioRynek 1.0.3 plugin is and is not — a fixed-price market, not auctions and not an HTTP API.

Compatible with: GrzybcioRynek 1.0.3Minecraft 26.2Web 0.1.0

Based on GrzybcioRynek 1.0.3 and web 0.1.0 source.

GrzybcioRynek 1.0.3 is a Paper plugin by Grzybcio (license Apache 2.0). Main class: com.example.marketplace.MarketPlace. It runs only on Paper / Minecraft 26.2. On any other version, MarketPlace.onEnable calls isSupportedServerVersion() and the plugin disables itself.

This is a fixed-price player market: the seller lists the item in hand for a set amount, the buyer opens the GUI, confirms the purchase, and pays through Vault. There is no bidding, outbidding, or real auctions.

What it is

A Minecraft plugin for Paper 26.2 (toolchain Java 25, Gradle build without a wrapper).
A fixed-price market: the price is fixed at listing time (/market sell / /wystaw).
GUIs for browsing, categories, favorites, history, mailbox, alerts, and stats.
Integration with Vault (required) and optionally Nexo, Oraxen, and PlaceholderAPI.
On-disk data: listings.yml and market-data.yml in plugins/GrzybcioRynek/.
Messages in config.yml under messages.* — there is no messages.yml file.

What it is not

Danger

These are not real auctions. The /aukcje command (aliases rynek-gui, ah-gui) only opens the browse GUI. There is no bidding, bids, or price outbidding.

Warning

The plugin has no HTTP API. The Strona/ folder is a mock UI in Next.js 16, not connected to the plugin.

It is also not:

a universal “any Paper” plugin — only 26.2;
a standalone economy — it requires Vault and an economy plugin.

Plugin vs website relationship

Part	Role	Connection to in-game market
Plugin (`PLugin/`)	Only working market logic	Vault, YAML, GUI
`Strona/`	Next.js 16, mock UI	None — mock data, not live
Wiki (`Wiki/`)	Documentation	Describes the 1.0.3 code

Note

An HTTP API does not exist. If navigation shows a page about a planned API, treat it as 🚧 Planned, not as a working feature.

Version and dependencies

yaml

name: GrzybcioRynek
version: '1.0.3'
main: com.example.marketplace.MarketPlace
api-version: '26.2'
depend: [Vault]
softdepend: [Nexo, Oraxen, PlaceholderAPI, Essentials]
author: Grzybcio

Vault is a hard dependency. Without Vault / without an economy provider, the plugin disables itself after a retry in 1 s (late Essentials start).
Essentials is only a softdepend for Vault timing — there is no direct Essentials API usage.
JAR: GrzybcioRynek-1.0.3.jar (admin uploads the ready file; build: Developer → Build).

Who it is for

For Paper 26.2 server administrators who want a fixed-price player market with Vault fees, a return mailbox, and optional custom items (Nexo / Oraxen). Not for 1.21.x servers or anyone looking for auctions with bidding.

Features