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Pufferfish API

A simple API to allow easy multi-version and multi-loader development.

FabricNeoForgeForge
Loaders
FabricNeoForgeForge
Downloads on Modrinth
6.8K
Followers on Modrinth
3
versions
87
Updated
September 21, 2026Sep 21
Published
in 2025
This is a library — other mods need it, and it adds nothing to the game by itselfRequired by 1 mods. Download it if another mod needs it.

At a glance

A library: other mods need it — required by 1 mods
Runs on Fabric, NeoForge and Forge
For Minecraft 1.21.4–1.21.11, 26.1.2–26.3 …
Needed in the game and on the server
Latest version — 1.3.3 from September 21, 2026
License MIT — free
Where it's needed
In gamerequiredOn serverrequired

Needed both in the game and on the server

Game versions1.21.1, 1.21.4–1.21.11, 26.1.2–26.3 …

Pufferfish API

Java CI with Gradle GitHub repo size Modrinth Downloads CurseForge Downloads

Pufferfish API is a library mod that makes it easier to develop multi-version and multi-loader mods with a single codebase. This is primarily built for my mods (excluding BTA), so stuff could break at any time, and you probably shouldn't build your own mods on top of this. This also doesn't add any content, so you should only install it if one of your mods depends on this.

Currently supported Minecraft versions and loaders:

Mods built with Pufferfish API:

Contribution Guide:

If you would like to contribute to Pufferfish API, please check out our GitHub

This mod is licensed under the MIT license, meaning you are free to distribute this mod and modify it as you see fit, including for commercial purposes, however no warranty is provided and I will not be held liable for anything in regards to this mod.

FAQ

How to install Pufferfish API?

Install Fabric for your Minecraft version, download Pufferfish API for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Pufferfish API support?

Pufferfish API has builds for Minecraft 1.20.6, 1.21.1, 1.21.4–1.21.11, 26.1.2–26.3.

Is Pufferfish API needed on the server?

Needed in the game and on the server

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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