Find fabric 1.21.1 create at: https://github.com/tia9os/Create/tree/mc1.21.1/fabric/dev (Releases)

Item Value Mod

Item Value Mod adds a configurable value system to Minecraft items, with live tooltip display and command-based breakdowns.

Features

• Adds a Value: <amount> line to item tooltips.
• Calculates both single-item value and total stack value.
• Uses configurable rarity multipliers (COMMON, UNCOMMON, RARE, EPIC).
• Applies crafting-aware rules:
  • Craftable vs non-craftable multipliers
  • Ingredient-count bonus (with cap)
  • Optional recipe-based base value derivation
• Ships with a large set of default values for notable vanilla items.
• Auto-creates and auto-updates config defaults.

Commands

• /itemvalue or /itemvalue hand
  • Shows held item value and a detailed calculation breakdown.
• /itemvalue reload
  • Reloads config and rebuilds recipe cache.
  • Requires permission level 2 (operator).

Formula

singleValue = (baseValue + ingredientBonus) * rarityMultiplier * craftingMultiplier

totalValue = singleValue * stackCount

Configuration

Config file path:

config/item_value_mod.json

You can configure:

• defaultBaseValue
• itemBaseValues (per-item overrides)
• rarityMultipliers
• crafting rules:
  • craftableMultiplier
  • nonCraftableMultiplier
  • enableIngredientBonus
  • ingredientBonus
  • ingredientBonusCap
  • deriveBaseValueFromRecipes
  • recipeValueMultiplier
  • derivationPasses

Compatibility

• Minecraft 1.21.1
• Fabric Loader >= 0.18.4
• Fabric API required
• Java 21+