minecraft-server/docs/RESEARCH-SHOP-GUI.md

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RESEARCH: GUI Shop Plugin Replacement for EZShop

Date: 2026-05-07 Server: racked.ru (Paper 1.21.x) Current state: EZShop 1.0-SNAPSHOT (custom, hardcoded 27 slots, drop+click sell only). YOU500 player report wants 54 slots + cleaner title. AUDIT-2026-05-07 F-11 already flags EZShop for removal. Goal: polished default-player sell/buy GUI with categories, multi-page, per-rank pricing, AGPL-compatible.


Candidates Evaluated

1. EconomyShopGUI (free) — Gypopo

  • Status: very active; v6.16.2 supports MC 1.21.11 (May 2026 release).
  • License: proprietary "free to use" binary; only the API is open-source on GitHub. Not AGPL-compatible in source-distribution sense, but redistributable as plugin.
  • Stack: Bukkit/Spigot/Paper; uses Paper API on modern servers; MiniMessage support since 6.14.
  • 1.21.x compat: verified through 1.21.11.
  • Paradigm: admin shop, both buy and sell, no player shops.
  • GUI: sizes 9-54 configurable; multi-page; categories with custom icons; clean titles per category.
  • Categories: unlimited (Blocks, Redstone, Food, Mob Drops…); /sellgui sub-menu; /sellall.
  • Vault: yes; also PlayerPoints, CoinsEngine, GemsEconomy, UltraEconomy, zEssentials, VotingPlugin.
  • Per-rank pricing: yes — discount/sell-multiplier permission nodes (EconomyShopGUI.discount.<n>).
  • Config: YAML-only in free; in-game GUI editor is premium-locked. Wiki at wiki.gpplugins.com.
  • DiscordSRV: none directly; via PAPI placeholders + DiscordSRV chat-broadcast feasible.
  • Known bugs: historic Paper-meta color-code raw display (fixed 6.x); permission registration on Paper plugin module (fixed); Mojang skull texture API outages; reviews otherwise overwhelmingly positive.
  • Premium gates: dynamic pricing, per-player limits, NBT/custom items, MySQL stock sync, command items, in-game GUI editor, search bar, EXP-locked items.
  • Verdict: STEAL — drop-in replacement that solves every YOU500 complaint with the free tier. Premium gates are nice-to-haves we don't need.

2. Genesis (formerly BossShopPro) — MageMonkey.studio

  • Status: actively maintained fork after Blackixx abandoned BSP; 1.21.1 released; 405 commits on dev branch.
  • License: MIT (verified on GitHub repo magemonkeystudio/genesis). AGPL-compatible.
  • Stack: Spigot/Paper.
  • 1.21.x compat: 1.21.1 confirmed, no explicit 1.21.4+ tag yet — needs smoke test.
  • Paradigm: generic GUI engine (not strictly a shop); buy/sell/conditions/rewards all configurable.
  • GUI: any size 9-54, multi-page, full title control.
  • Categories: modeled as nested menus (manual link buttons); no built-in category abstraction.
  • Vault: yes; addon Multiple Currencies for points/tokens.
  • Per-rank pricing: yes via condition system + permission predicates.
  • Config: YAML, very verbose — every button hand-defined. High config complexity but maximum flexibility.
  • Addons: Player Shops, Limited Uses, Inventory Commands, Multiple Currencies (all free).
  • DiscordSRV: none native; PAPI bridge possible.
  • Known bugs: original BSP broke on 1.21 with old maintainer absent; Genesis fork stable but skull-texture fixes still trickling in.
  • Verdict: PATTERN — too DIY for a default-player shop, but the condition/predicate model is the gold standard if we ever need a quest-shop or rank-buy GUI. Keep in pocket.

3. UltimateShop — PQguanfang / ManyouTeam

  • Status: very active; supports 1.20.51.21.11.
  • License: GPL-3 (from search results) but a "Plugin EULA" clause restricts redistribution on leaked-plugin sites. Effectively GPL-3 + non-commercial-clone clause. AGPL-compatible for our use (we don't redistribute).
  • Stack: Paper-first.
  • 1.21.x compat: verified to 1.21.11.
  • Paradigm: admin shop; buy/sell; daily-rotation shop; menu-as-shop hybrid (TrMenu-inspired).
  • GUI: fully customizable slot layout, multi-page native.
  • Categories: yes; menu-driven with NBT-aware item display.
  • Vault: yes; also PlayerPoints, plus item-for-item barter.
  • Per-rank pricing: yes — conditional pricing with PAPI math expressions (e.g. VIP discount via placeholder).
  • Config: YAML + math expressions; mid complexity; integrates with MMOItems, Oraxen, Nexo, MythicMobs.
  • DiscordSRV: none mentioned.
  • Known bugs: none flagged in search; some advanced features paywalled.
  • Verdict: STEAL (alternate) — strong second pick if EconomyShopGUI's premium-funnel becomes an issue. Slightly steeper config, but cleaner license story.

4. QuickShop-Hikari — Community fork

  • Active, 6.2.0.11 (Feb 2026). Dual GPLv3 / AGPLv3 — perfect license fit. Paper-only (Spigot dropped). 1.20+ verified.
  • Paradigm: player chest shops — wrong fit for "default-player sell shop". Also has admin-shop mode but the UX is sign+chest, not category GUI.
  • MiniMessage native, NBT, virtual displays.
  • Verdict: PATTERN — keep for future "player shops at spawn" feature; not a replacement for EZShop.

5. ChestShop-3 (Acrobot)

  • LGPL-2.1, dev-builds work on 1.21.8 but last tagged release was 2022. Sign+chest paradigm — no GUI.
  • Verdict: SKIP — wrong paradigm and stale tags.

6. zShop — Maxlego08 / GroupeZ

  • GPL-3 — AGPL-compatible. Active (396 commits). Spigot-targeted.
  • Buy/sell/permissions/enchants/orders. 17 button types. Multi-economy.
  • 1.21 compat unclear from search; relies on zMenu API dep (extra plugin to install).
  • Verdict: PATTERN — interesting for the order-book idea but extra dependency and unclear 1.21 status make it second-tier.

7. CoinsEngine + ExcellentShop (NightExpress)

  • CoinsEngine 1.201.21.10, free, modular currency provider.
  • ExcellentShop is the shop module; modular (virtual / chest / rotating sub-shops); paid premium for full feature set, free tier limited.
  • Verdict: SKIP for shop (paid funnel mirrors ShopGUI+); CoinsEngine itself is worth noting as a Vault alternative if we ever need multi-currency.

8. ShopGUI+ (brcdev)

  • Paid only on SpigotMC; closed source. Popular but fails AGPL/free preference.
  • Verdict: SKIP.

9. DeluxeMenus (HelpChat)

  • MIT, active, 1.21 compat. Not a shop — generic menu engine. No economy logic; you'd glue Vault commands manually.
  • Verdict: PATTERN — already used elsewhere on racked.ru; worth using as the frontend for a hand-rolled shop only if all of the above fail.

10. AuctionHouse (kiranhart) / NexusAuctionHouse / ModernHDV

  • Already deployed (AuctionHouse-1.4.6.jar). Player-to-player auction, not category sell-shop. Complementary, not substitute. F-11 was wrong to call AuctionHouse a replacement — it solves a different problem.
  • Verdict: keep AuctionHouse; do not rely on it as the EZShop replacement.

Recommendation

Top 3:

  1. EconomyShopGUI (free) — STEAL. Best fit, zero-config defaults, every YOU500 complaint resolved out of the box.
  2. UltimateShop — STEAL alternate. Cleaner license, comparable feature set, slightly more config.
  3. Genesis (BSP-continued) — PATTERN. Keep in pocket for advanced quest-shop / rank-gated GUIs.

Action: Pilot EconomyShopGUI free on staging, replicate current EZShop categories, smoke-test 54-slot layout, ship to live in next maintenance window. Keep AuctionHouse separate (player auctions remain a distinct feature). Update AUDIT-2026-05-07.md F-11 to reflect that EconomyShopGUI — not AuctionHouse — is the replacement.