AH Buy Price Tracker
by MVPFishstock
AH Buy Price Tracker is a Fabric client mod for Hypixel SkyBlock that records the price paid for items bought on the Auction House and shows it in their tooltips.
What it does
The mod watches the chat for Auction House purchase messages and, when one appears, matches the bought item against the inventory changes that follow within a short time window. Each match is stored with its price and the time of purchase, so the buy price stays visible on the item from then on. Items are identified by their ExtraAttributes UUID from Hypixel item data where it is present, with an NBT fingerprint as a fallback, so tracking still works for items without a UUID.
Purchase data is saved locally and reapplied to the item tooltip each time the game starts, so the record does not depend on a server-side store. The mod is a client-side only Fabric mod and does not modify server data. It only tracks items that were bought while the mod was installed, so earlier purchases will show no price. Fabric API is required, and the mod is released under the MIT License. The code is available, but the mod is not open source.
Key features
Automatic purchase detection
Purchases are picked up from chat messages, so no command or manual entry is needed.
Exact item matching
Each item is matched by its Hypixel UUID where possible, and by an NBT fingerprint when no UUID is present.
Persistent tooltip display
The price and purchase time are written into the tooltip and kept across sessions.
Short-window inventory tracking
Inventory changes within a short time after a purchase message are used to assign the price to the correct item.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Players on Hypixel SkyBlock who buy items on the Auction House and want their purchase prices shown on the items themselves. The mod needs Minecraft 1.21.10 or 1.21.11, Fabric Loader, Fabric API and Java 21.
How it compares
DonutSMP Ah Protection is a Fabric client mod for 1.21.11 under All rights reserved, and it is not open source. Donut Buy Confirm is a Fabric client mod for 1.21.11 – 26.2 under the GNU General Public License v3.0 only, and it is open source. MysticMC Auction Tracker is a Fabric client mod for 1.21.8 – 26.1.2 under All rights reserved, and it is not open source. Diamond Auction House is a Fabric mod for 1.18.1 – 1.20.4 that is server-side only, under the MIT License, and it is open source. AH Buy Price Tracker covers 1.21.10 – 1.21.11 and is client-side only, so it differs from the server-side option by where it runs.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AH Buy Price Tracker | Fabric | 1.21.10 – 1.21.11 | Client-side only | 2026-03-29 |
| DonutSMP Ah Protection | Fabric | 1.21.11 | Client-side only | 2026-07-28 |
| Donut Buy Confirm | Fabric | 1.21.11 – 26.2 | Client-side only | 2026-09-07 |
| MysticMC Auction Tracker | Fabric | 1.21.8 – 26.1.2 | Client-side only | 2026-08-25 |
| Diamond Auction House | Fabric | 1.18.1 – 1.20.4 | Server-side only | 2023-09-21 |
Questions
Does AH Buy Price Tracker need Fabric API?
Does the server need to run the mod?
Why does an item bought earlier show no price?
More from MVPFishstock
What the author says
AH Buy Price Tracker (Fabric 1.21.10 / 1.21.11) A lightweight client-side Fabric mod for Hypixel SkyBlock that automatically tracks the price and purchase time of items bought from the Auction House and permanently displays this information in the item tooltip.
Official listing
- Modrinth page
- modrinth.com/mod/ah-buy-price-tracker
- Owner
- MVPFishstock
- Published
- 2026-03-29
- Updated on Modrinth
- 2026-03-29
- Facts verified
- 2026-10-15