
ModsJava
Bypass Fabric Check
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.


Bypass Fabric Check
🇺🇸 English Description
Introduction
This is a simple Fabric mod designed to solve the issue where Vanilla Clients cannot join a LAN/Server with Fabric API installed in Minecraft 1.21+.
Features
- Bypass Handshake: Intercepts
FabricConfigurationTasksent from the server to non-local players. - Vanilla Compatibility: Allows friends without any mods to connect directly to your Fabric host.
- Server-Side Only: Needs to be installed on the Host/Server only. Clients do not need this mod.
- Toggleable: You can enable or disable the bypass feature dynamically via commands.
Fixes Error
This server requires Fabric Loader and Fabric API installed on your client!
Commands
You can toggle the bypass status using the following commands (Requires OP permission):
/bypass on- Enable bypass (Default). Allows Vanilla clients to join./bypass off- Disable bypass. Restores default Fabric behavior (Vanilla clients will be rejected).
🇨🇳 中文说明
简介
这是一个简单的 Minecraft Fabric 模组,旨在解决 1.21+ 版本中,原版客户端 (Vanilla Client) 无法加入安装了 Fabric API 的局域网 (LAN) 或服务端的问题。
功能特点
- 绕过握手检查 (Bypass Handshake): 拦截服务端向非本地玩家发送的
FabricConfigurationTask。 - 原版兼容 (Vanilla Compatibility): 允许没有任何模组的朋友直接连接你的 Fabric 主机。
- 服务端专用 (Server-Side Only): 只需要安装在 Host/服务端,客户端无需安装。
- 可动态开关: 支持在游戏中通过指令实时开启或关闭绕过功能。
解决了什么报错?
This server requires Fabric Loader and Fabric API installed on your client!
指令说明
你可以通过以下指令控制功能开关(需要 OP 权限):
/bypass on- 开启绕过检查(默认)。允许原版客户端加入。/bypass off- 关闭绕过检查。恢复 Fabric 默认行为(原版客户端将被拒绝)。
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as bypass-fabric-check-1.0.9.jar — drop this file into the mods folder
- Download size: 86 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.