
Modrinth · Minecraft mod
AuthlibProxyForServer
Authlib proxy for server
Quick answer
Which AuthlibProxyForServer release matches 1.21.10 Fabric?
AuthlibProxyForServer v0.4.1-mc1.21.10 targets 1.21.10, 1.21.9 with Fabric. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.
Where it goes
Is AuthlibProxyForServer required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does AuthlibProxyForServer v0.4.1-mc1.21.10 need?
v0.4.1-mc1.21.10 on 1.21.10 Fabric. 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 AuthlibProxyForServer without breaking your instance.
Built for AuthlibProxyForServer v0.4.1-mc1.21.10 on 1.21.10 Fabric. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use v0.4.1-mc1.21.10. It targets 1.21.10, 1.21.9 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
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside v0.4.1-mc1.21.10. It opens that exact file at the source.
About this project
What does AuthlibProxyForServer add?
AuthlibProxyForServer
Copyright (c) 2025 Calboot and contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/
Conclusion
Authlib proxy for and only for servers
Sets the proxy for contacting Mojang server
Mostly based on Fallen-Breath's template
Links
Usage
- Install this mod to your server (dedicated only)
- Start the server
- Run
/authproxyto configure the proxy
{
"enabled": false, // set to true to enable
"type": "HTTP", // or SOCKS
"host": "127.0.0.1", // either IP or host name
"port": 7897 // [0,65536)
}
EOL
Currently supported versions
Currently, the following Minecraft versions are actively supported with new features and bug fixes
| Minecraft Version | Support Until |
|---|---|
| 1.14.4 | ✔️ Long Term Support |
| 1.15.2 | ✔️ Long Term Support |
| 1.16.4-5 | ✔️ Long Term Support |
| 1.17.1 | ✔️ Long Term Support |
| 1.18.2 | ✔️ Long Term Support |
| 1.19.4 | ✔️ Long Term Support |
| 1.20-1.20.1 | ✔️ Long Term Support |
| 1.20.5-6 | ✔️ Long Term Support |
| 1.21-1.21.10 | 🕒 When Minecraft 27.1 snapshot is released |
| 1.21.11 | 🕒 To be determined |
End-of-life versions
The following Minecraft versions are out of the support range. There's no support for these Minecraft versions, unless some critical bugs occur
| Minecraft Version | Last Version | Release Date |
|---|
Scheduled to be supported versions
The following Minecraft versions are scheduled to be supported in the later versions
| Minecraft Version | Support Starts |
|---|
Project description from Modrinth.
Pick your setup
AuthlibProxyForServer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build26.1.1
1 loader build26.1-snapshot-9
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader buildShowing the newest 12 of 28 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
AuthlibProxyForServer versions and loaders
v0.4.1-mc1.21.10
authlib-proxy-for-server-v0.4.1-mc1.21.10.jar
28 Mar 2026
v0.4.0-mc1.21.10
authlib-proxy-for-server-v0.4.0-mc1.21.10.jar
22 Feb 2026
v0.3.2-mc1.21.10
authlib-proxy-for-server-v0.3.2-mc1.21.10.jar
10 Dec 2025
v0.3.1-mc1.21.10
authlib-proxy-for-server-v0.3.1-mc1.21.10.jar
10 Dec 2025
v0.3.0-mc1.21.10
authlib-proxy-for-server-v0.3.0-mc1.21.10.jar
6 Nov 2025
v0.2.2-mc1.21.10
authlib-proxy-for-server-v0.2.2-mc1.21.10.jar
10 Oct 2025
Looking for an older file? The official Modrinth project page is in Resources.