CurseForge · Minecraft mod
BCLib
A library mod for BetterX mods
This page is having a moment, so a few details may be a little behind.
Quick answer
Which BCLib release should I use?
bclib-2.1.8 [1.19.2] targets 1.19.1, 1.19.2, 1.19 with Fabric. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. 1 required mod needs a matching file.
Where it goes
Is BCLib required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does bclib-2.1.8 [1.19.2] need?
bclib-2.1.8 [1.19.2]. Change the file and its required mods may change too.
Install Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add BCLib without breaking your instance.
Built for bclib-2.1.8 [1.19.2]. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use bclib-2.1.8 [1.19.2]. It targets 1.19.1, 1.19.2, 1.19 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside bclib-2.1.8 [1.19.2]. It opens that exact file at the source.
About this project
What does BCLib add?
This is a library mod for BetterEnd, BetterNether, Eden Ring and possible future mods from BetterX team. It should be installed as a separated mod.
This library can be used by other developers to make their own mods. If you have some suggetions or enhancements we are open for discussions and pull requests.
Some features will appear in future, all documentation is inside javadocs. If some docs are missing please report this, it will be fixed.
Standalone Features:
- Compatibility between Nether and End mods and datapacks biome generation
- Emissive textures (with "_e" suffix) for solid and cutout blocks (+ resourcepack support; will not work in Iris);
- Automatic emission shaders for Canvas (+ resourcepack support);


Modmakers Features (short outdated list):
Rendering
- Emissive textures (with _e suffix)
- Can be applied to Solid and Transparent blocks;
- Can be changed/added with resourcepacks;
- Incompatible with Sodium and Canvas (just will be not rendered);
- Incompatible with Iris shaders (Iris without shaders works fine).
- Procedural block and item models (from paterns or from code);
- Block render interfaces.
API:
- Simple Mod Integration API:
- Get mod inner methods, classes and objects on runtime.
- Structure Features API:
- Sructure Features with automatical registration, Helpers and math stuff.
- World Data API:
- World fixers for comfortable migration between mod versions when content was removed;
- Support for Block name changes and Tile Entities (WIP).
- Bonemeal API:
- Add custom spreadable blocks;
- Add custom plants grow with weight, biomes and other checks;
- Custom underwater plants.
- Features API:
- Features with automatical registration, Helpers and math.
- Biome API:
- Biome wrapper around MC biomes;
- Custom biome data storage;
- Custom fog density.
- Tag API:
- Pre-builded set of tags;
- Dynamical tag registration with code;
- Adding blocks and items into tags at runtime.
Libs:
- Spline library (simple):
- Helper to create simple splines as set of points;
- Some basic operation with splines;
- Converting splines to SDF.
- Recipe manager:
- Register recipes from code with configs and ingredients check.
- Noise library:
- Voronoi noise and Open Simplex Noise.
- Math library:
- Many basic math functions that are missing in MC.
- SDF library:
- Implementation of Signed Distance Functions;
- Different SDF Operations and Primitives;
- Different materials for SDF Primitives;
- Block post-processing;
- Feature generation using SDF.
Helpers And Utils:
- Custom surface builders.
- Translation helper:
- Generates translation template.
- Weighted list:
- A list of objects by weight;
- Weighted Tree:
- Fast approach for big weight structures;
- Block helper:
- Some useful functions to operate with blocks;
Complex Materials:
- Utility classes used for mass content generation (wooden blocks, stone blocks, etc.);
- Contains a set of defined blocks, items, recipes and tags;
- Can be modified before mods startup (will add new block type for all instances in all mods);
- All inner blocks and items are Patterned (will have auto-generated models with ability to override them with resource packs or mod resources).
Pre-Defined Blocks and Items:
- Most basic blocks from MC;
- Automatic item & block model generation;
Configs:
- Custom config system based on Json;
- Hierarchical configs;
- Different entry types;
- Only-changes saves.
Interfaces:
- BlockModelProvider:
- Allows block to return custom model and blockstate.
- ItemModelProvider:
- Allows block to return custom item model.
- CustomColorProvider:
- Make available to add block and item color provider.
- RenderLayerProvider:
- Determine block render layer (Transparent and Translucent).
- PostInitable:
- Allows block to init something after all mods are loaded.
- CustomItemProvider:
- Allows block to change its registered item (example - signs, water lilies).

Project description from CurseForge.
Pick your setup
BCLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.1
1 loader buildShowing the newest 12 of 18 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
BCLib versions and loaders
bclib-26.100.3 [26.1.2]
bclib-26.100.3.jar
2 Aug 2026
bclib-21.8.4 [1.21.8]
bclib-21.8.4.jar
1 Aug 2026
bclib-26.200.0 [26.2]
bclib-26.200.0.jar
31 Jul 2026
bclib-26.100.2 [26.1.2]
bclib-26.100.2.jar
31 Jul 2026
bclib-21.8.3 [1.21.8]
bclib-21.8.3.jar
31 Jul 2026
bclib-26.100.1 [26.1.2]
bclib-26.100.1.jar
28 Jul 2026
bclib-21.8.2 [1.21.8]
bclib-21.8.2.jar
26 Jul 2026
bclib-26.100.0 [26.1.2]
bclib-26.100.0.jar
26 Jul 2026
bclib-26.0.1 [26.1.2]
bclib-26.0.1.jar
24 Jul 2026
bclib-21.8.1 [1.21.8]
bclib-21.8.1.jar
23 Jul 2026
bclib-21.8.0 [1.21.8]
bclib-21.8.0.jar
19 Jul 2026
bclib-21.0.13 [1.21.1]
bclib-21.0.13.jar
13 Aug 2024
Looking for an older file? The official CurseForge project page is in Resources.
