CurseForge · Minecraft mod
Legacy Fabric-Api
The legacy fabric version of the fabric api
Quick answer
Which Legacy Fabric-Api release matches 1.8.4?
Legacy Fabric-Api Legacy Fabric API 1.19.0 targets 1.9.3, 1.8.7, 1.7.4 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Legacy Fabric-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.
The source does not explicitly classify this release as client-only or server-only.
What else does Legacy Fabric-Api Legacy Fabric API 1.19.0 need?
Legacy Fabric API 1.19.0 on 1.8.4. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Legacy Fabric-Api without breaking your instance.
Built for Legacy Fabric-Api Legacy Fabric API 1.19.0 on 1.8.4. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Legacy Fabric API 1.19.0. It targets 1.9.3, 1.8.7, 1.7.4 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 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 Legacy Fabric API 1.19.0. It opens that exact file at the source.
About this project
What does Legacy Fabric-Api add?
Legacy Fabric API is the core library for the most common hooks and inter compatibility measures utilized by mods using the Legacy Fabric toolchain
More information and full installation instructions can be found on the Legacy Fabric website and support can be found on the Legacy Fabric discord server.
This is SEPARATE from the Fabric loader! You need both for most mods!
Join our discord server for help: https://discord.gg/yBTpRXe
Join us on #legacyfabric on irc.esper.net
Project description from CurseForge.
Pick your setup
Legacy Fabric-Api by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.12.1
1 loader build1.12
1 loader build1.11.2
1 loader build1.11.1
1 loader build1.11
1 loader build1.10.2
1 loader build1.10.1
1 loader build1.10
1 loader build1.9.4
1 loader build1.9.3
1 loader build1.9.2
1 loader buildShowing the newest 12 of 45 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
Legacy Fabric-Api versions and loaders
Legacy Fabric API 1.19.0
legacy-fabric-api-1.19.0.jar
25 Jun 2026
Legacy Fabric API 1.18.3
legacy-fabric-api-1.18.3.jar
14 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.