Cadmium
Cadmium is a scripting plugin for Minecraft, much like Skript. However, instead of a custom DSL, Cadmium uses Python with almost full support for the PyPI package ecosystem.
Features
Cadmium uses Python 3.12 as its scripting layer, which allows for almost full (read Technicals) support for PyPI packages. On top, Paper/Bukkit API abstractions are provided, allowing for Pythonic syntax to define Commands, hook into Events and more.
DISCLAIMER
ALL ABSTRACTIONS FOR PAPER APIS ARE NOT COMPLETE YET
As of now, Cadmium is in BETA. Currently, Java reflection is gonna be required in most cases. Cadmium is not production ready yet. API coverage will increase with updates.
Technicals
Cadmium runs on GraalVM/GraalPy. This means that some PyPI packages will not work, including requests (use httpx instead). A more comprehensive list is available here.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Cadmium-1.0-SNAPSHOT-all.jar — drop this file into the mods folder
- Download size: 32 KB
- Download link checked 25 Aug 2026 — working
These come from our own check of the pack file, not from the source page.