Forge Config API Port is a library mod that brings NeoForge's and Forge's entire configuration system to other modding ecosystems, including Fabric and Quilt, for Minecraft versions 1.20.1 through 26.1. Created by Fuzs, it allows mod developers to use a unified config framework across all major mod loaders without rewriting platform-specific code.
One of the most persistent headaches in the Minecraft modding community is fragmentation between mod loaders. A mod built for Forge handles its configuration files one way, while Fabric does things completely differently. This forces developers to maintain separate config systems for each platform — or worse, abandon support for certain loaders entirely. Forge Config API Port solves this by acting as a bridge, giving every mod loader access to the same proven config system that NeoForge and Forge players have relied on for years. With over 42 million downloads, it has quietly become one of the most essential behind-the-scenes libraries in the entire modding ecosystem. If you have ever installed a multiloader mod on Fabric and wondered how it kept the exact same settings menu as the Forge version, this is the mod making that happen.
Key Features of Forge Config API Port
- Full NeoForge & Forge Config System on Fabric — Instead of offering a stripped-down imitation, this library provides the complete NeoForge and Forge configuration framework to Fabric and Quilt. This means mod developers don't have to compromise on features when supporting multiple loaders, and you as a player get the same polished settings experience regardless of which loader you use.
- Multiloader Architecture Support — The library is built around a mod-loader-independent common distribution, which means developers can write their config code once and have it work everywhere. For players, this translates to more mods being available on your preferred loader, since developers face fewer barriers to cross-platform support.
- Broad Mod Loader Compatibility — Forge Config API Port supports Fabric, Forge, NeoForge, and Quilt. No matter which mod loader you've built your modpack around, this library works seamlessly in the background. You never need to switch loaders just because a mod you want requires Forge-style configs.
- Automatic Config File Management — The library handles the creation, loading, and saving of configuration files using the same reliable TOML-based format used by Forge and NeoForge. Your settings persist correctly between sessions, and config files are organized in the standard locations where you'd expect to find them.
- Dependency for Hundreds of Popular Mods — Many of the most popular cross-platform mods list Forge Config API Port as a required dependency. By having it installed once, you unlock compatibility with a huge library of mods that rely on it — everything from quality-of-life tweaks to major gameplay overhauls created by Fuzs and other developers.
- Lightweight Library Design — As a pure library mod, Forge Config API Port appears to be lightweight and adds no gameplay changes, no menus of its own, and no extra overhead beyond providing the config framework. It stays completely out of your way while doing critical work behind the scenes.
- Active Maintenance and Fast Updates — Originally published in December 2021 and last updated on March 28, 2026, this library has been maintained continuously for over four years. It already supports Minecraft 26.1, meaning you won't be stuck waiting for updates when new Minecraft versions drop.
Screenshots
How to Install Forge Config API Port
- First, make sure you have the correct mod loader installed. Forge Config API Port supports Fabric, Minecraft Forge, NeoForge, and Quilt — install whichever one matches your modpack.
- Download the correct version of Forge Config API Port for your Minecraft version and mod loader from the official Modrinth or CurseForge page. Double-check that the file matches both your game version and your loader.
- Place the downloaded
.jarfile into your Minecraftmodsfolder. On Windows, this is typically located at%appdata%\.minecraft\mods. - If you are using Fabric, make sure you also have Fabric API installed, as many mods that depend on Forge Config API Port also require it.
- Launch Minecraft through your mod loader's profile. Forge Config API Port loads silently in the background — if the game starts without errors, it is working correctly.
Requirements & Compatibility
| Requirement | Details |
|---|---|
| Supported Mod Loaders | Fabric, Forge, NeoForge, Quilt |
| Minecraft Versions | 1.20.1, 1.21.1, 1.21.3 – 1.21.11, 26.1 |
| Dependencies | Fabric Mod Loader (for Fabric), respective loader for others |
| License | MPL-2.0 (open source) |
| Source Code | Available on GitHub |
What's New
- Minecraft 26.1 support — The library has been fully updated to work with Minecraft 26.1 as of March 2026.
- Minecraft Forge support re-enabled — The latest release (v26.1.0.2) restores full Minecraft Forge compatibility for the 26.1 branch.
- Build system migration — The project has migrated from Architectury Loom to Fabric Loom and Mod Dev Gradle, improving long-term maintainability.
- Access widener fix — A missing
accessWidenerentry in the Fabric distribution was patched in v26.1.0.1, resolving potential mod loading issues. - Note for developers — Access transformers on NeoForge are not yet implemented in this cycle but should not be required for normal use.
Pros and Cons
Pros
- Enables cross-platform config support across all four major mod loaders
- Over 42 million downloads — proven stability and community trust
- Actively maintained with fast updates for new Minecraft versions
- Open source under MPL-2.0 license
- Completely invisible to players — no UI clutter or gameplay changes
Cons
- Not useful as a standalone mod — only needed when other mods depend on it
- Can be confusing for new players who don't understand why they need a "library" mod
- Some NeoForge-specific features like access transformers are not yet fully ported
Alternatives to Forge Config API Port
- Cloth Config API — A popular configuration screen library for Fabric and Forge that provides visual in-game config menus, often used alongside Forge Config API Port for mods that want both backend config handling and a user-friendly settings GUI.
- Puzzles Lib — Another library by Fuzs that provides shared utilities for multiloader mod development, frequently listed as a dependency alongside Forge Config API Port in cross-platform modpacks.
- YetAnotherConfigLib (YACL) — A modern configuration library focused on Fabric that offers a clean API for building config screens, serving as an alternative approach for developers who prefer a Fabric-native solution.
Download Forge Config API Port
| Minecraft Version | Fabric | Forge | NeoForge |
|---|---|---|---|
| For Minecraft 26.1 | Download | Download | Download |
| For Minecraft 1.21.11 | Download | Download | Download |
| For Minecraft 1.21.10 | Download | Download | Download |
| For Minecraft 1.21.9 | Download | Download | Download |
| For Minecraft 1.21.8 | Download | Download | Download |
| For Minecraft 1.21.7 | Download | Download | Download |
| For Minecraft 1.21.6 | Download | Download | Download |
| For Minecraft 1.21.5 | Download | Download | Download |
| For Minecraft 1.21.4 | Download | Download | Download |
| For Minecraft 1.21.3 | Download | Download | Download |
| For Minecraft 1.21.1 | Download | Download | Download |
| For Minecraft 1.20.1 | Download | — | — |
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Frequently Asked Questions
Do I need Forge Config API Port if I only play on Fabric?
Yes — many popular Fabric mods that were originally built for Forge require this library to handle their configuration files. Even though you're running Fabric, these mods still use the Forge-style config system under the hood, and Forge Config API Port is what makes that possible. Check the dependency list of your installed mods to confirm whether you need it.
Does Forge Config API Port change any gameplay?
No, it changes nothing about gameplay whatsoever. Forge Config API Port is a pure library mod that runs entirely in the background. It provides a config framework for other mods to use but adds no blocks, items, menus, or any other visible content to your game.
Is Forge Config API Port compatible with Minecraft 26.1?
Yes — full support for Minecraft 26.1 was added on March 24, 2026, with an additional patch on March 28 that re-enabled Minecraft Forge support. Builds are available for Fabric, Forge, and NeoForge on the 26.1 branch.
Can I use Forge Config API Port with Quilt Loader?
Yes, Quilt is officially listed as a supported mod loader. Since Quilt maintains broad compatibility with Fabric mods, Forge Config API Port works on Quilt installations. Simply place the Fabric version of the library into your Quilt mods folder.
What happens if I don't install Forge Config API Port when a mod requires it?
The dependent mod will fail to load, and you will typically see an error on the Minecraft loading screen listing Forge Config API Port as a missing dependency. Your game may refuse to start entirely or will start without the mod that needed it. The fix is straightforward — just download and install the correct version of Forge Config API Port for your Minecraft version and mod loader.
