Armory API

The library is built around two types, ToolSet and ArmorSet, which group the tools and armor a mod registers. A ToolSet does not have to be limited to the standard vanilla tool collection, because it can hold custom tool types added through ToolPieceType instances. Each ToolPieceType carries its own item factory, statistics and properties, so a mod can introduce new tool categories alongside the vanilla ones.

Armory API handles item registration automatically and reduces the duplicated code that a mod would otherwise write to register each tool and piece of armor. The registration step is carried out by a loader-specific implementation, so the core logic stays independent of Fabric, Forge and NeoForge. Helper APIs let a mod create custom tool and armor behaviors that extend beyond vanilla functionality.

The project was extracted from XunLib and keeps its scope small, with minimal dependencies. Only mods that explicitly depend on Armory API require it. The library is released under the MIT License and is open source, with its source code and issue tracker public. Files are published for Fabric, Forge and NeoForge, and the latest build targets 1.21.1 for each of them.