AutoItemInActionBar (AIIA)
AutoItemInActionBar keeps chosen stacks in the hot-bar and off-hand topped up from the inventory as they run out during play.
What it does
When the stack in the selected hot-bar slot or the off-hand is used up, the mod pulls a matching item from the inventory into that slot. The refill covers block placement, item dropping, egg throwing, tool breaking and splash or lingering potion throwing, so a player keeps working without reopening the inventory.
Buckets get their own handling. When a filled bucket is emptied, the mod gives back an empty bucket, and it can refill a bucket with water, lava or fish. The refill logic stays lightweight and does not change recipes, items or world generation.
Installation needs Fabric. The mod is published for Fabric across 16 release versions, 1.21 – 26.2, under the MIT License, and its source code is public. It also has builds for the Paper and Purpur server platforms, which are not mod loaders.
Key features
Hot-bar refill
A stack in the hot-bar that runs out is replaced with the same item from the inventory, without a manual move.
Off-hand refill
The off-hand slot is kept stocked the same way, so frequently used items stay ready to use.
Use-based refill
Refills trigger on block placement, item dropping, egg throwing, tool breaking and potion throwing.
Bucket handling
An emptied bucket is replaced with an empty one, and a bucket can be refilled with water, lava or fish.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Building with blocks
Long building sessions keep the block in hand supplied while the player works in one spot.
Combat and tools
Potions, eggs and tools in use are replaced as they break or run out, so the hand stays full during a fight.
Who it’s for: Players on Fabric who want stacks in the hot-bar and off-hand restocked automatically. Server owners running Paper or Purpur can also use the server build.
How it compares
Bucket Replenisher is Fabric only, client-side only and covers 1.21.11 – 26.1.2, with all rights reserved. Hotbar Restock is Fabric only, client-side only and published for 26.1.2 alone, under the MIT License. Smart Refill is Fabric only, client-side only, licensed under the MIT License and covers 1.21.4 – 1.21.11, so it does not reach 26.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AutoItemInActionBar (AIIA) | Fabric | 1.21 – 26.2 | Not published | 2026-08-16 |
| Bucket Replenisher | Fabric | 1.21.11 – 26.1.2 | Client-side only | 2026-07-31 |
| Hotbar Restock | Fabric | 26.1.2 | Client-side only | 2026-05-31 |
| Smart Refill | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-09-29 |
Questions
Does AutoItemInActionBar need Fabric API?
Can AutoItemInActionBar run on a server?
Which game versions does AutoItemInActionBar support?
In the catalog
AutoItemInActionBar (AIIA) is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
AutoItemInActionbar is a lightweight utility plugin that ensures you always have important items ready in your hand or off-hand, refilling them automatically from your inventory.
Official listing
- Modrinth page
- modrinth.com/mod/autoiteminactionbar
- Owner
- tantaihaha4487
- Published
- 2025-06-27
- Updated on Modrinth
- 2026-08-16
- Facts verified
- 2026-10-15