IOU
by Halonium
IOU lets a player turn a stack of items into a written debt that another player can hold and redeem later, and it works on Fabric for 1.19.4 and 1.20.1.
What it does
A stack is converted into an IOU item by holding Ctrl while pressing the key bound to the action, so a single held stack produces one IOU stack. An IOU records the items it stands for, and it can be handed over to another player, who then owns the claim. The author notes describe the idea as a way for friends to remind each other of what they owe and pay it back.
Strict matching is available as a separate option: the IOU NBT must match exactly, instead of relying on the Ctrl and Shift combination. Items that have been dropped or tossed at the front of a player are handled as ordinary items, and a pickup from the ground keeps the same record. Installation is Fabric only, on client and server. Both the server and every player need the mod, and the code is open source under the CC0 1.0 Universal license, with files for 1.19.4 and 1.20.1.
Key features
Item stack to IOU
Holding Ctrl while using the key converts a held stack into an IOU stack that records those items.
Handing over a debt
An IOU can be given to another player, who can then claim the items it stands for.
Strict NBT matching
An option requires the IOU NBT to match exactly instead of relying on the Ctrl and Shift combination.
Dropped and picked-up items
Items tossed to the front of a player are treated as dropped, and a player can pick them up again.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Player-run trading
Players on a shared server can use IOUs to record what one owes another and settle it later.
Friendly debts
Friends who lend items to each other can keep a written record in the form of an IOU item.
Who it’s for: Players and server owners who want a debt record that travels as an item, for shared survival worlds where players trade or lend goods to each other.
Questions
Does IOU need to be installed on the server?
Which loader and versions does IOU support?
What does strict matching change?
In the catalog
IOU is one of 2,072 Economy mods on ModsFinder, and one of 1,159 Economy mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from Halonium
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/iou
- Owner
- Halonium
- Published
- 2025-05-13
- Updated on Modrinth
- 2025-05-18
- Facts verified
- 2026-10-15