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Item Alchemy Expansion

by luckfun233

Item Alchemy Expansion is a Fabric add-on for Item Alchemy that lets the Transmutation Table recognize NBT data on items, shulker boxes included.

FabricClient and serverMIT LicenseOpen source1.20 – 26.2

What it does

The add-on requires Item Alchemy and mcpitanlib 3.3.2 or later, and it needs Fabric API as well. Once installed, the Transmutation Table treats items with different NBT data as distinct, so a stored enchanted or named item is no longer priced the same as a plain one. Shulker box contents are handled too, and a shift preview shows the 9×3 contents of a box when the player holds Shift while hovering over it.

Price handling covers crafting, smelting and other recipes, including custom recipe types defined by other mods. Items without a defined EMC value get one by summing the EMC of their materials. The configuration screen is available through Mod Menu under the Item Alchemy Expansion Experimental category and uses Cloth Config, which lets server owners set display styles and strategies. A confirmation dialog appears the first time the feature is enabled and lists items with manually set EMC values, so the user can keep those values or hand them over to automatic pricing. Potions stored in the table no longer turn into Uncraftable Potions after retrieval.

Installation covers the server and each player's game. It is released under the MIT License and the source code is public. Items that were already in the table without NBT, such as those from the Uncraftable Potions mod, have to be placed in the table again after installation for the fix to apply. Bugs and feature suggestions go to GitHub Issues.

Key features

  1. NBT-aware Transmutation Table

    The table distinguishes items by their NBT data, so differently stored items get their own values.

  2. Shulker box preview

    Holding Shift over a shulker box displays its nine-by-three contents, and WASD or arrow keys move focus between items.

  3. Automatic price calculation

    Recipes from crafting, smelting and mod-defined types are scanned to calculate prices for items without a set EMC value.

  4. Manual EMC check dialog

    On first enable, items with manually set EMC values are listed so the user can keep them or switch to automatic pricing.

  5. Batch repricing command

    The itemalchemy-expansion reprice command reruns batch pricing if the user accidentally chooses to keep manual values.

Compatibility

Latest build for each game version and loader.

26.x1 of 1 version with builds
26.21.2.2
1.21.x5 of 5 versions with builds
1.21.41.1.1
1.21.31.1.1
1.21.21.1.1
1.21.11.2.2
1.211.2.2
1.20.x5 of 5 versions with builds
1.20.41.2.2
1.20.31.2.2
1.20.21.2.2
1.20.11.2.2
1.201.2.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Item Alchemy Additions is open source under the MIT License and published for Fabric 1.20.1. EMsee is also MIT licensed and published for Fabric 1.20.1, and it runs on client and server like this add-on. EMC Essentials - ReFabricated is a Fabric 1.20.1 mod under All rights reserved, also with client and server environment.

ModLoadersGame versionsEnvironmentUpdated
Item Alchemy ExpansionFabric1.20 – 26.2Client and server2026-10-10
Item Alchemy AdditionsFabric1.20.1Client and server2026-07-11
EMseeFabric1.20.1Client and server2026-02-23
EMC Essentials - ReFabricatedFabric1.20.1Client and server2026-06-07

Questions

Does Item Alchemy Expansion need Item Alchemy installed?

Yes. It is an add-on, so Item Alchemy must be present, along with mcpitanlib 3.3.2 or later and Fabric API.

Which game versions does the add-on support?

Files cover 1.20 – 26.2 across 11 release versions. The latest Fabric file, 1.2.2, is published for 1.21.1.

Do servers need the add-on as well as players?

Yes. Every player and the server need a copy of the mod.

In the catalog

Item Alchemy Expansion is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 13,894 mods support Minecraft 26.2.

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What the author says

An add-on mod for Item Alchemy that makes the Transmutation Table truly recognize NBT. Scans all crafting, smelting, and other recipes (including mod-defined custom types) to automatically calculate prices for items without defined EMC based on the sum of their material EMC values. Enable this feature in Mod Menu →…
luckfun233, on the Modrinth page

Official listing

Owner
luckfun233
Published
2026-08-05
Updated on Modrinth
2026-10-10
Facts verified
2026-10-15

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