Fabric API Needed by Cobblestone API cobblestone-api-1.0.0+mc1.21.jar
requiredMatching file found Matched file: [1.21] Fabric API 0.102.0+1.21
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CurseForge · Minecraft mod
Cobblestone API
Core utility library for Minecraft: Java Edition mod development
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Cobblestone API release matches 1.21?
Best match for your filters cobblestone-api-1.0.0+mc1.21.jar
Game version 1.21
Loader Fabric
Cobblestone API cobblestone-api-1.0.0+mc1.21.jar targets 1.21 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Cobblestone API required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Cobblestone API cobblestone-api-1.0.0+mc1.21.jar need?
cobblestone-api-1.0.0+mc1.21.jar on 1.21. Every mod below is checked against that same setup.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Cobblestone API without breaking your instance.
Built for Cobblestone API cobblestone-api-1.0.0+mc1.21.jar on 1.21. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use cobblestone-api-1.0.0+mc1.21.jar. It targets 1.21 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside cobblestone-api-1.0.0+mc1.21.jar. It opens that exact file at the source.
About this project
What does Cobblestone API add?
Cobblestone API
Core utility library for Minecraft: Java Edition mod development
Overview
Cobblestone API is a foundational toolkit designed specifically for Minecraft mod developers, providing efficient data persistence and event management solutions to significantly streamline mod development workflows.
Core Modules
Core Module
Core module supports you to automatically bootstrap some class so that you not need to load them manually.
Data Module
Delivers advanced data persistence capabilities:
- Entity Data Extension: Custom data binding through injection into
LivingEntityclass - Intelligent Serialization: Automatic conversion between Java objects ↔ NBT data
Event Module
Extends the native event system:
- Enhanced Event Hooks: Expanded coverage of critical game lifecycle points
Building
Use Gradle build tool to compile the project.
License
View NOTICE file
Source Code License
This project is licensed under LGPL-3.0
View full license text
Third-Party Components
| Component | License |
|---|---|
| All dependencies | Apache-2.0/MIT |
| Build toolchain | MIT |
View DEPENDENCIES file
Compliance Notes
- Distribution of binary files must include the NOTICE file
- Modified library code requires disclosure of source changes
- Mods using this library don't need to open-source their own code
Project description from CurseForge.
Pick your setup
Cobblestone API by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.21
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Cobblestone API versions and loaders
cobblestone-api-1.0.0+mc1.21.jar
2 Aug 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · matched Listed on Release listing
Check the 1.21 · Fabric setup 1.21Fabric release
Looking for an older file? The official CurseForge project page is in Resources.
