ErrorLib
A Core and API Mod mainly for mods by Unknown_303 and any associates, but others are encouraged to use it as well.
⬇ Download on ModrinthA Core and Library Mod for mods by Unknown_303 and any associates.
Other developers are free to use it as well.
In game, ErrorLib adds the Corrupted Heart and Corrupted Forge (not yet added) and other api services for developers. For developers, it speeds up the process of implementing certain features, and makes it easier to implement features that have no tutorials for 1.20.1.
In-game services (not yet added):
- Corrupted Forge (used for crafting)
- Silver, Tin, Steel, Titanium, and other materials.
- Tools & Armor for those materials.
API Services (for developers):
- Custom Horse Armor
- Custom IForgeRegistry
- Custom Armor Trim Patterns & Materials
- Custom Abilities*
- Custom Tool Tiers
- Custom Armor Types
- Custom Fluids*
It would also be very helpful if you could follow the project for analytics purposes
*Not yet added/Work in Progress
NOTES FOR DEVELOPERS:
When using the mod as an API, make sure to use the jar file ending with -api for unobfuscated code.
It would also be very helpful if you could follow the project for analytics purposes.
Tutorials will soon be made for using the API.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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 errorlib-2.1.2-1.20.1.jar — drop this file into the mods folder
- Download size: 59 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.