No. 08 · Economy
Ultra Auctions
3D Auction House
Not a chest of listings. An auction house your players walk into. Four ways to sell, live bidding wars and 3D showcases for your spawn. Pictures in chat, no resource pack.

- Version
- 0.0.1
- Runs on
- Paper
- Minecraft
- 1.21.11, 26.1 - 26.3
- Java
- 21+
- Resource pack
- None
- Store
- BuiltByBit
Most auction plugins are one menu behind a command, and half of your players never open it. Ultra Auctions puts the best lots in the middle of your spawn: real 3D showcases where the item turns at eye height with its name, its price, its clock and its seller, and a click opens the lot.
Behind them is a complete house: four ways to sell, bidding wars with a boss bar that counts the last minute down, a price history for every item, buy orders, mystery boxes and a mailbox that never loses a thing. Every message and every menu is drawn with the game's own pictures. No resource pack, no client mod: it works the moment your players join.

- 3D showcases at spawn
- bidding wars
- pictures in chat
- a price for everything
Every picture and GIF on this page is a real capture from the game, taken with our Ultra Shaders pack. Without shaders your players see the same showcases, menus and messages, without the warm light. The plaza is a build of ours: the plugin brings the auction house, the showcases, the menus and the messages.
Why your players will love it
- The market is a place.They walk past a showcase, see a sword turning over a cushion with three bids on it and an hour to go, and click. Nobody has to remember a command.
- Auctions that feel like auctions.A boss bar in the last minute, green while you lead and red when you are outbid, a button in chat to bid again, and SOLD TO YOU across the screen when you win.
- Nobody gets ripped off.Every lot says how it sits against what that item usually sells for. Bargains get a Deal badge, and the sell menu suggests a fair price.
- Nothing is ever lost.Money for a bid is held and comes back the moment you lose. Items wait in a mailbox when your bag is full or you are away.
Why you will love it
- Your spawn sells for you.Put a showcase down like a block and pick what it shows. Your market hall fills itself with whatever your players put up.
- A real money sink.A listing fee, a sale tax and a spotlight fee, each one a line in config.yml, with a permission that skips them for a rank.
- Works with your economy.Ultra Core directly, or EssentialsX, CMI and any other economy plugin through Vault.
- Ready the moment you drop it in.One jar, nothing else to install, every text yours to change. Put it in plugins and type /ah.



- Real 3D showcases.A black and gold stand with a red cushion, built from the game's own blocks: no resource pack, no custom model. The lot's item turns over the cushion at the height of the eyes.
- Everything at a glance.Over the item: its name, its price or its highest bid, how many bids it has, the time left and the seller's face.
- A click opens the lot.Buy it, bid on it or make an offer, straight from the showcase.
- A sale is a little show.Sparks, and the showcase says SOLD, for how much and to whom. Then it moves on to the next lot.
- It lights your hall.Every showcase glows, so a row of them looks like a gallery at night.


- Put it down like a block./ahadmin showcase gives you one. Place it at spawn or in a market hall: it takes three blocks, one over the other.
- Pick what it shows.Sneak and click it: the spotlight, what ends soon, what just came in, the top prices, the most wanted, the deals, the lots of the house, one shelf (weapons, tools, blocks...), or one lot you pick by hand.
- A row that works together.Showcases that share a list show its lots side by side, and move on to the next ones together every few seconds.
- Safe in a public place.It cannot be broken, pushed by pistons, flooded or built into. Only staff pick it up, from its own menu.
- One room for all of them./ahadmin showcase lists every showcase in the world: what each one shows, where it stands, and a click to go there.
- For players too, if you want.An option lets players buy showcases that show their own lots, with a price and a limit per player. Off by default.

- Six doors./ah opens the hall: Browse, Auctions, Sell, My lots, Requests and the Market, round your own card with your balance and what you earned.
- Find anything.Shelves for every kind of item, the deals, the spotlight, and a search by name, enchantment or seller.
- One page per lot.The item exactly as it is, the seller, the market and the clock on top, every action under them.
- Calm menus.A black canvas, back always bottom left, close bottom right, short cards with aligned columns.
- A window where typing is better.A price, a bid, an offer or a search opens a small window with the item in it. Never a chat prompt.


- Buy now.A fixed price, first come, first served. Buyers can take part of a stack, or make an offer under the price that the seller accepts or declines.
- Auction.Bids climb until the clock ends, with an optional buyout that ends it at once.
- Dutch auction.The price starts high and falls every minute toward a floor. The first to take it wins.
- Sealed bids.Everyone bids blind, once. The highest envelope wins at the end. Optionally the winner pays the second highest bid.
- Bundles./ah bundle opens a chest: drop up to nine stacks in and they sell as one lot.
- Mystery boxes.Seal a lot: buyers see only its shelf, its rarity and whether it is enchanted.
- The spotlight.A seller pays a fee to feature a lot: front row on every page, a glow, and a card to everyone online.
- A sell menu that does the work.Click a stack in your bag, pick the way, take the market's price or set your own with buttons, and it is up.


- Bid once, stay ahead.Name the most you would pay. The house bids for you, only as high as it has to.
- A boss bar for the last minute.It drains with the clock: green while you lead, red when you are outbid, gold for the seller.
- No sniping.A bid in the last seconds adds time, so the best offer wins, not the fastest finger.
- Never miss the end.Alerts at five minutes and at one minute for bidders, followers and the seller.
- Outbid? One click.The message has a button to bid again. Your money was already given back.
- SOLD TO YOU.Winning writes it across the screen, with sparks on the showcase.

- The game's own pictures, everywhere.The item of a lot next to its name, the seller's face next to theirs, a picture for each way to sell, for money, clocks and bids.
- Hover and click.Hover an item in chat to see the real thing with its enchantments. Buttons to see a lot, grab a deal or bid again.
- Cards, not walls of text.The spotlight, a win, your stats and the price of what you hold arrive as small centred cards.
- Nothing to download.No resource pack. Every player sees it the moment they join.

- A price history for every item.Every sale feeds it: the usual price, the lowest, the highest, the trend and a small graph.
- Every lot against the market.Each card says how far under or over the usual price it is.
- Deals.A lot well under the market gets a Deal badge, a place on the deals shelf and an alert in chat.
- A price suggested.The sell menu offers what the item usually fetches, and /ah value tells you what the thing in your hand is worth.
- A wishlist.Mark an item and you get a ping the moment somebody lists it.

- Buy orders.Hold an item and post "I want 64 of this at 50 each". The money is held up front.
- Anyone delivers.From their bag, a part or all of it, and they are paid on the spot.
- An instant sale.When a request already pays for what you hold, the sell menu offers to sell it right now.

- Escrow everywhere.Money for a bid, an envelope, an offer or a request is held the moment it is placed and comes back the moment it loses. Nobody bids what they do not have.
- The mailbox.What you win, buy or get back goes straight into your bag, or waits in the mailbox when there is no room or you are away.
- Away? Nothing missed.Outbid, sold, won, an offer, a refund: every line is kept and read back when you join, with your mailbox and your stakes summed up.
- One click to try again.A lot that ran out unsold goes back up with a right-click.
- Seller standing.Titles by lots sold, from Newcomer to Tycoon, a card for every seller and five leaderboards.


Made for server owners
- Paper 1.21.11, 26.1, 26.2 and 26.3.One jar for all of them, Java 21 or newer.
- Any economy.Ultra Core's bank directly, with no Vault. Or Vault or VaultUnlocked with EssentialsX, CMI or any economy plugin.
- Fees and limits.Listing fee, sale tax, spotlight fee, lots per rank (ultraauctions.limit.<n>), minimum and maximum prices and durations, an item blacklist.
- The house sells too.Staff can put lots up in the server's name. What they sell for leaves the economy.
- PlaceholderAPI.Live lots, deals, the money moved today, the lot ending next, the usual price of any item, every player's stats and the top of every leaderboard.
- Every word is yours.messages.yml holds every message in MiniMessage, with the colours and the little pictures named at the top of the file.
- A ledger of everything.One file a day: every listing, bid, offer and sale.
- Each way to sell is a switch.Auctions, Dutch auctions, sealed bids, offers, requests, mystery boxes: turn off what you do not want.


Open your auction house today.
More is on the way
This is where it starts. New features keep arriving through updates, and every buyer gets every one of them.
Commands
Players
/ah the hall (also /auction, /auctions, /auctionhouse, /ultraauctions)
/ah browse [shelf] the shelves, or one shelf
/ah search [text] by name, enchantment or seller
/ah view <id> one lot
/ah sell [price] [time] [mystery] the sell menu, or the held stack straight up
/ah auction <start> [buyout] [time]
/ah dutch <start> <floor> [time]
/ah sealed <minimum> [time]
/ah bundle <price> [time] a chest to drop several stacks in
/ah bid <id> <amount> a ceiling on an auction, or a sealed envelope
/ah buy <id> [amount] buy now, take a Dutch lot, buy an auction out
/ah offer <id> <amount> an offer under the asking price
/ah offers <id> answer the offers on your lot
/ah cancel <id> | feature <id> | watch <id> | wish
/ah my | mailbox | claim | activity | requests | market | settings
/ah request <amount> <each> [time] post a buy order for the held item
/ah fill <id> [amount] deliver to a request
/ah value what the held item usually sells for
/ah seller <player> | top [board] | stats [player] | helpStaff
/ahadmin showcase the showcases of the house: take one, set them up, go to one
/ahadmin showcase give [player] [amount] | list | remove <id>
/ahadmin sell <price> [time] a lot the house puts up
/ahadmin auction <start> [buyout] [time]
/ahadmin cancel <id> | info <id> | feature <id>
/ahadmin clear <player> | purge | stats
/ahadmin blacklist list | add <material> | remove <material>
/ahadmin request cancel <id>
/ahadmin reset <player> confirm
/ahadmin reloadMoney takes 250, 1.5k or 2m. Times take 30m, 2h or 1d12h.
Permissions
ultraauctions.use open the house, browse, buy (everyone)
ultraauctions.sell put lots up (everyone)
ultraauctions.sell.bin ... as buy now (everyone)
ultraauctions.sell.auction ... as an auction (everyone)
ultraauctions.sell.dutch ... as a Dutch auction (everyone)
ultraauctions.sell.sealed ... as sealed bids (everyone)
ultraauctions.bid bid on auctions (everyone)
ultraauctions.request post buy orders (everyone)
ultraauctions.feature pay for the spotlight (everyone)
ultraauctions.mystery seal a lot as a mystery box (everyone)
ultraauctions.limit.<n> n lots up at once, e.g. ultraauctions.limit.20
ultraauctions.limit.unlimited no limit
ultraauctions.free no listing fee, no tax
ultraauctions.showcase own showcases, where the config lets players have them
ultraauctions.showcase.limit.<n> how many of them
ultraauctions.stats.others /ah stats <player> (op)
ultraauctions.admin every staff command, the showcases (op)Placeholders
%ultraauctions_active% %ultraauctions_auctions% %ultraauctions_deals% %ultraauctions_featured%
%ultraauctions_requests% %ultraauctions_items_tracked% %ultraauctions_ending_next%
%ultraauctions_volume_24h% %ultraauctions_volume_7d% %ultraauctions_sales_24h%
%ultraauctions_median_<item>% the usual price of an item
%ultraauctions_top_<board>_<n>_name% %ultraauctions_top_<board>_<n>_value%
boards: earned, spent, sold, bought, best
%ultraauctions_tier% %ultraauctions_tier_plain% the seller title
%ultraauctions_listings% %ultraauctions_limit% %ultraauctions_mailbox% %ultraauctions_unread%
%ultraauctions_stakes% %ultraauctions_watching% %ultraauctions_wishes%
%ultraauctions_earned% %ultraauctions_spent% %ultraauctions_fees%
%ultraauctions_sold% %ultraauctions_bought% %ultraauctions_listed% %ultraauctions_won% %ultraauctions_bids%
%ultraauctions_best_sale% %ultraauctions_best_sale_item%
%ultraauctions_requests_filled% %ultraauctions_requests_posted%
%ultraauctions_rank_<board>% %ultraauctions_hand_value%Showcases in three steps
- Type /ahadmin showcase and click Take a showcase.
- Put it down like a block where you want it. It faces you.
- Sneak and click it, open What it shows and pick a list, a shelf, or one lot.
Put several down with the same list and they show its lots side by side. Pick one up from its own menu.
With Ultra Core
Ultra Core has a small auction module of its own, and it answers /ah first. Turn it off with /core module auctions off and /ah opens Ultra Auctions; staff get a card with a button for it when they join. /ultraauctions opens Ultra Auctions either way. The bank of Ultra Core is used directly: no Vault needed.
Files
- config.yml- every switch and number: fees, limits, durations, each way to sell, the market, alerts, showcases, titles.
- messages.yml- every word, the colours and the little pictures.
- listings.json, requests.json, market.json, showcases.json- the lots, the buy orders, the price history, the showcases.
- players/- one file per player: stats, mailbox, notes, wishlist, settings.
- logs/- the ledger, one file a day.
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