Mod CraterLib

CraterLib, a universal modding API for Minecraft

CraterLib is a library mod for Minecraft Java Edition, created to support mods from First Dark Development and HypherionSA. Rather than adding blocks, items, or gameplay on its own, it provides shared code and platform helpers that make development easier across Fabric, Forge, NeoForge, and Quilt.

Its toolkit includes a TOML configuration system, cross loader events, configuration screens, networking utilities, and helper classes for common Minecraft features. On a Minecraft server, CraterLib mainly works as a dependency that helps compatible mods run consistently across different loaders and versions. At BoxToPlay, we recommend it when a modpack lists CraterLib as required.