Sheepish's API
by ItsSheepish
Sheepish's API is a Fabric library that extends how recipes, advancements and crafting grids behave for other mods to use.
What it does
The library adds functions that vanilla does not provide. Recipes can be mirrored horizontally or vertically, and a shaped recipe can be set to accept an upside-down layout. Recipe handling skips invalid entries instead of failing on them, and a new recipe type works like a shaped recipe with an extra field for shapeless ingredients.
Advancements gain a trigger and custom criteria. The trigger fires when a player gains a given count of a specific item, and it tracks non-stackable items separately from regular stackable ones. Counting covers picking up items and updating the inventory. Stackable items that span several stacks are listed as untested.
Sheepish's API runs on the client and the server, so both sides need it. It is published for 1.21.1 – 1.21.11 on Fabric, with 11 release versions and 1.0.3 for 1.21.11 as the latest file in the beta channel. It is released under the MIT License and is open source. Source code and an issue tracker are public. Harder Armours requires it.
Key features
Mirrored recipes
Shaped recipes can be mirrored horizontally or vertically, with a flag that allows an upside-down layout.
Non-stackable advancement tracking
A new advancement trigger counts non-stackable items in the inventory, including when items are picked up.
Custom advancement criteria
Mod authors can define their own advancement types, with example criteria taken from the Hard Totems Mod in development.
Extended recipe type
A recipe type that works like a shaped recipe and accepts an extra field for shapeless ingredients, with two new fields.
Invalid recipe handling
Invalid recipe instances are disregarded rather than causing the recipe loader to stop.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x11 of 11 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 1 mod
How it compares
Rearview Mirror Mod is a client-side only Fabric mod under the MIT License, built for 1.21.11 alone. StacKit is server-side only, open source under the MIT License, and covers 1.21 – 1.21.3. Stack 99 runs on client and server for 1.21.11 under the GNU Lesser General Public License v3.0 or later.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Sheepish's API | Fabric | 1.21.1 – 1.21.11 | Client and server | 2026-05-28 |
| Rearview Mirror Mod | Fabric | 1.21.11 | Client-side only | 2026-06-25 |
| StacKit | Fabric | 1.21 – 1.21.3 | Server-side only | 2024-09-05 |
| Stack 99 | Fabric | 1.21.11 | Client and server | 2026-02-21 |
Questions
Does Harder Armours need Sheepish's API?
Does Sheepish's API have to be installed on both sides?
Which game versions does Sheepish's API support?
In the catalog
Sheepish's API is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
A helpful API for parts of mods made by Sheepish mainly serving as elements to solve issues which should be in vanilla Triggered by player gaining a count of specific item; works when picking up, updating inventory etc. Works for non-stackable items as opposed to regular items. Untested for stackable items to measure…
Official listing
- Modrinth page
- modrinth.com/mod/sheepishs-api
- Owner
- ItsSheepish
- Published
- 2026-05-20
- Updated on Modrinth
- 2026-05-28
- Facts verified
- 2026-10-15