
AuthlibProxyForServer
Authlib proxy for server
About this Mod
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 |
|---|
Available Versions
How to Install AuthlibProxyForServer on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1).
Install Mod
Open the mod browser in the dashboard and search for "AuthlibProxyForServer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1, 26.1-snapshot-9, 1.21.11 (+22 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
AuthlibProxyForServer server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1). You can switch loaders with one click in the panel.
Is AuthlibProxyForServer compatible with fabric?
AuthlibProxyForServer officially supports fabric for Minecraft 26.1, 26.1-snapshot-9, 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with AuthlibProxyForServer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if AuthlibProxyForServer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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