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OPCore

Your all-in-one QoL helper for OPSUCHT.net
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opcore-1.1.2.jar

File nameopcore-1.1.2.jar
Uploader
OPShadowWolfOPShadowWolf
Uploaded
Oct 22, 2026
Downloads
12
Size
5.2 MB
Mod Loaders
Fabric
File ID
9286304
Type
R
Release
Supported game versions
  • 1.21.11

Curse Maven Snippet

Fabric

modImplementation "curse.maven:opcore-1734581:9286304"

Learn more about Curse Maven

What's new

NEW FEATURES

  • Market search: New search window in the style of the auction house search. Results come from the OPSUCHT market API data (stored locally, refreshed once a day, button to reload right away). A click opens the market and leads you straight to the buy window. Matching is word based ("ton" finds Ton, but not Button).
  • Market navigation: Uses the server command /markt search first, otherwise pages through categories. It reacts to the server's command cooldown and chat errors and moves on as soon as the next window is ready.
  • Market index: OPCore knows which category, page and slot each item is in (bundled, and it learns more with every search and corrects itself). /marktindex crawls all categories.
  • Recently bought: The 3 most recently bought items are shown next to the market window. One click opens the buy window.
  • Update notice: On the first join of a session OPCore checks Modrinth and CurseForge and shows a clickable chat message if a newer version exists. No player data is sent. Can be turned off in the settings.
  • Bundled item database: Custom items show up right away in REI, the auction house search and tooltips, with model, name and description. Plain vanilla, player-made and blocked items are not included.
  • REI: The full list is sorted by type, collection, rarity and name. Tooltips match the REI item database.
  • Inventory value window: Freely resizable like a browser window (drag edges or corners). The size is saved.
  • Speed display: Calculated from the NBT data (attribute_modifiers, movement speed) of main hand, offhand and armor with the vanilla formula.
  • Theme for more screens: Horse, enchanting table, loom, stonecutter, cartography table, brewing stand, furnaces, hopper, dispenser/dropper, beacon and crafter.
  • RTP menu, SW list and home list: The same hotkey now closes the window again.

IMPROVED

  • Auction house search: Uses the server's /ah search first (by name, then by material) before paging through categories, remembers the route per item, and only opens an auction when item, seller and prices match. If the API data is outdated, it reloads once and restarts the search on its own. Results use the same item data as REI.
  • Tab completion: Suggestions appear left of the search field; market suggestions only list items with a market price.
  • Slot lock: Ctrl + click on a hotbar slot is handled at the lowest click level, so it works even when other mods intercept clicks first.
  • "Only custom items in REI": Now really hides all vanilla items and enables the item database.
  • REI re-fits itself when the window size or GUI scale changes, so the list is no longer cut off.
  • Player-renamed items are hidden in REI and the auction search when the original exists.
  • Collective price verification now needs 5 reports.
  • Performance for long sessions: cached price lookups, rarity highlights and slot tooltips; tooltip index built in the background.

FIXED

  • Crash in the rarity highlight (NullPointerException).
  • Missing models and wrong tooltips for some items in the item database.
  • Duplicate entries in the auction house search (original and renamed copy).

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