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minecraft-server/docs/RESEARCH-AUCTION-HOUSE.md

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RESEARCH — Auction House Plugin Options for racked.ru

Date: 2026-05-07 Status: Read-only research; no changes applied Audience: Operator deciding "drop EZShop, replace with AH-only" plan Source server: nullstone-server / minecraft-mc container

1. Current /ah plugin

Plugin:   AuctionHouse  (Kiranhart / Tweetzy)
Jar:      AuctionHouse-1.4.6.jar
Repo:     github.com/kiranhart/Auction-House  (source visible, last push 2026-04-12)
LICENSE:  none in repo  ->  defaults to ARR (proprietary)
Distro:   Paid via Spigot / Songoda / Polymart  (also leaked elsewhere)
1.21.x:   yes — single-jar 1.8*–1.21

Live config from /data/plugins/AuctionHouse/config.yml:

Setting Value
tax 0.01 (1%)
default-max-auctions 10
bin-auctions true
bid-auctions true
bid-auction-duration 7200 s
bin-auction-duration 172800 s
auto-collect false
partial-selling false
use-adventure-text true

Vault: required. MiniMessage: yes. Per-rank limits: via auctionhouse.maxauctions.<n> permissions. Logs: plugins/AuctionHouse/logs/. Discord: none built in.

Known historic bugs (mostly patched):

  • Listing-tax + confirmation dupe when player can't pay tax
  • Disconnect-during-price-input dupe on rejoin
  • AuctionHouseAntiDupe exists as third-party patch plugin — signal that exploits keep re-appearing
  • 29 open GitHub issues at time of writing

2. Alternatives surveyed

Plugin Last update License 1.21.x Bid+BIN Per-rank Tax Discord Vault Notes
AuctionHouse (Kiranhart) — current 2026-04 ARR (no LICENSE) yes yes perms yes no yes Industry default, dupe history
AuctionHousePlugin (Elaine Qheart, Hangar) 2025-09, v1.4.7 GPL 1.21–1.21.11 yes permissions.yml yes community link only yes Looks like a friendly fork/clone of Kiranhart. Open beta, only 1k installs
NexusAuctionHouse (Modrinth) ~2024 (v2.2.3 latest) MIT 1.21–1.21.6 BIN only configurable caps listing+sale fees webhooks yes Truly free + permissive. Lacks bidding
AuctionHousePlus (SpigotMC, paid) 2025-12, v3.2 ARR / paid 1.21–1.21.11 yes yes yes bot+web buy yes Web UI + Discord buy flow; paid
GlobalMarketplace (Modrinth) ~8 months ago, v1.0.3 ARR 1.21–1.21.10 both not documented not documented webhooks yes Geyser/Bedrock UI, newer entrant
ModernHDV (SpigotMC) 2026-02 Free + paid Pro 1.14–1.21.11 yes yes yes no yes Crash-safe atomic txns; SQLite/MySQL; free tier viable
Unique Auction House 2026-01 paid 1.21.x yes yes yes partial yes Premium polish, ARR
zAuctionHouse (BuiltByBit) 2026-04 paid 1.8.8–1.21 yes yes yes partial yes "Most used"; mixed reviews on support; anti-dupe built in
AuctionMaster (SpigotMC) active 1.21.6 paid 1.8–1.21.6 yes yes yes partial yes Reported major dupe in 2025; slow dev response
AuctionGUI+ (brcdev) 2022 paid up to 1.19 yes yes yes no yes STALE — drop from list
HeadAuction n/a n/a n/a n/a n/a n/a n/a n/a No plugin found by this name
AuctionHouse-Lite (Knokko) 2019 LICENSE present no n/a n/a n/a n/a n/a ARCHIVED
CMI auction module 2026 active paid suite yes basic yes yes no yes CMI itself doesn't ship a real auction house — operators add a separate AH plugin alongside. Not a replacement
Discord-bridged AH (e.g. Auction Discord Sync addon) active varies universal adds to any AH n/a n/a yes n/a Bolt-on. Pair with Kiranhart or Nexus if Discord wanted

3. License / racked.ru AGPL fit

racked.ru policy is privacy-first and open. Important: Kiranhart's repo has no LICENSE file — under GitHub default this is "all rights reserved". The jar is sold; redistribution likely violates terms. We are within rights to use it on a private server, but the project is not aligned with our open-source ethos.

Only options that are clearly open-source:

  • NexusAuctionHouse — MIT. Free. Truly compatible.
  • AuctionHousePlugin (Elaine Qheart) — GPL on Hangar.
  • ModernHDV Free Edition — usable without paying, source not published (mixed).

4. Verdict — keep or swap?

Keep AuctionHouse 1.4.6 (Kiranhart) for now, but plan a swap.

Reasons to keep short-term:

  • It's working, configured, and the /ah UX is what players already know
  • Single-jar 1.21.x support, MiniMessage, BIN+bidding both enabled, 1% tax, per-rank caps via perms
  • Active dev: last push 2026-04-12, dupe patches landing

Reasons to plan a swap medium-term:

  • License is ARR with no published LICENSE file — incompatible with racked.ru's open philosophy
  • Recurring dupe history; community ships AuctionHouseAntiDupe as a band-aid
  • 29 open GitHub issues
  • No native Discord; requires a separate sync addon

Concrete swap candidates, ranked:

  1. NexusAuctionHouse (MIT) — best fit for racked.ru ethics. Drawback: BIN-only, no bidding. If we don't care about live bidding (most player markets don't), this is the strongest pick.
  2. AuctionHousePlugin (Elaine Qheart, GPL) — closest drop-in: same config layout (config.yml, layout.yml, messages.yml, permissions.yml), so a migration is cheap. Open license. Smaller community is the main risk.
  3. ModernHDV Free Edition — atomic transactions are a real anti-dupe win; pair with anything else for safety. Pro tier locks multi-server (we don't need).

Reject: zAuctionHouse, AuctionMaster, AuctionHousePlus, Unique AH, AuctionGUI+, CMI as AH, Knokko archived.

Recommended path: stay on Kiranhart 1.4.6 through the EZShop drop. Once /ah is the sole player marketplace, schedule a one-week staging-server trial of NexusAuctionHouse (MIT) and Elaine Qheart's AuctionHousePlugin (GPL). Pick whichever survives the trial; Nexus wins on license, Elaine wins on UX parity.

5. Sources

  • github.com/kiranhart/Auction-House (current plugin source; no LICENSE)
  • hangar.papermc.io/ElaineQheart/AuctionHousePlugin (GPL fork/parallel)
  • modrinth.com/plugin/nexusauctionhouse (MIT)
  • modrinth.com/plugin/globalmarketplace-(paper)-auction-house (ARR)
  • spigotmc.org/resources/auctionhouseplus-...123740 (paid)
  • spigotmc.org/resources/modernhdv-...132982 (free+pro)
  • builtbybit.com/resources/zauctionhouse-...8987 (paid)
  • spigotmc.org/resources/auctionmaster-...84784 (paid)
  • github.com/knokko/Auctions-Plugin (archived 2019)
  • spigotmc.org/resources/auctionhouseantidupe.109427 (signal for dupe history)