AuthlibProxyForServer
by AyakaCraft
AuthlibProxyForServer is a Fabric utility that is installed on a dedicated server only, where it routes that server's authentication requests through a proxy.
What it does
Once the mod is installed on a dedicated server and the server is started, the proxy is configured with the command authproxy configure proxy. The setting controls the proxy used when the server contacts Mojang's servers for authentication. Because the mod is server-side only, players join the server without installing anything, and clients need nothing from it.
The mod works on Authlib proxy-only servers and is aimed at server owners who need that setup. Support follows the Minecraft versions the author actively maintains, which receive new features and bug fixes. Older versions outside the support range are not updated, and the author notes that support may continue for some versions unless critical bugs occur. Versions scheduled for later support are added as they come.
Files are published for Fabric only, across 27 release versions 1.14.4 – 26.2, and snapshot builds are published too. The code is released under the GNU General Public License v3.0 or later, so the mod is open source, and its source code and issue tracker are public.
Key features
Proxy for authentication
Sets the proxy the server uses when contacting Mojang's authentication servers.
Command-based configuration
The proxy is set with the authproxy configure proxy command after the server has started.
Server-only installation
The mod is placed on a dedicated server, and players need no installation on their side.
Template base
Much of the project is based on Fallen-Breath's template, a shared starting point for Fabric mods.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x12 of 12 versions with builds
1.20.x4 of 4 versions with builds
1.19.x1 of 1 version with builds
1.18.x1 of 1 version with builds
1.17.x1 of 1 version with builds
1.16.x2 of 2 versions with builds
1.15.x1 of 1 version with builds
1.14.x1 of 1 version with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Proxied authentication on a server
A server owner whose machine must reach Mojang's servers through a proxy can configure that route with the mod.
Who it’s for: Server owners running a dedicated Fabric server who need their authentication traffic to go through a proxy.
How it compares
AuthProxy is a server-side only Fabric mod under the GNU Lesser General Public License v3.0 or later, open source, and published for 1.16 – 26.1.1, so it covers an older range than this mod. Network Proxy is a client-side only Fabric mod under the MIT License, open source, for 1.21 – 26.2, and it changes the client rather than the server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AuthlibProxyForServer | Fabric | 1.14.4 – 26.2 | Server-side only | 2026-03-28 |
| AuthProxy | Fabric | 1.16 – 26.1.1 | Server-side only | 2026-04-05 |
| Network Proxy | Fabric | 1.21 – 26.2 | Client-side only | 2026-07-14 |
Questions
Does AuthlibProxyForServer need to be installed on clients?
Which loader does AuthlibProxyForServer use?
How is the proxy configured?
In the catalog
AuthlibProxyForServer is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
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…
Official listing
- Modrinth page
- modrinth.com/mod/authlibproxyforserver
- Owner
- AyakaCraft
- Published
- 2025-06-08
- Updated on Modrinth
- 2026-03-28
- Facts verified
- 2026-10-15