
mod
Sol's AuthLoginMinecraft mod for 1.21.1
A server-side authentication mod. It provides a complete login/registration system for servers that require an additional layer of account security.
- Latest version
- 1.21.1-v1.3
- Minecraft
- 1.16.5 to 1.21.1
- Java
- Java 21+
- Loaders
- Forge, NeoForge
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 324
- Updated
- 9 d ago
- Available on
- Modrinth
Host Sol's AuthLogin servers
One click and Sol's AuthLogin is installed with the right loader, on hardware built for it.
- 1.21.1
- Forge
- NeoForge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Sol's AuthLogin declares support for, newest first, with the Java runtime that version needs.
Download
From Sol's AuthLogin’s own host. Nothing is re-hosted here.
solsauthlogin-1.21.1-neoforge-1.21.1-1.3.jar · 0.1 MB · for 1.21.1
284673e96258…Older versions10Hide older versions
- 1.20.1-v1.324 Jul 20261.20.10.1 MB29 downloads
85a31e61889d…Get - 1.16.5-v1.324 Jul 20261.16.50.1 MB7 downloads
ddf6b7e262f4…Get - 1.20.1-1.2.2821 Jun 20261.20.10.1 MB84 downloads
897f9f3faa89…Get - 1.16.5-1.2.2821 Jun 20261.16.50.1 MB27 downloads
820c5dabb77c…Get - 1.20.1-1.2.2718 May 20261.20.10.1 MB116 downloads
f56ad3dcdb71…Get - 1.16.5-1.2.2718 May 20261.16.50.1 MB17 downloads
89087dae5b81…Get - 1.16.5-1.2.213 May 20261.16.50.1 MB17 downloads
51980096b0c2…Get - 1.20.1-1.2.213 May 20261.20.10.1 MB13 downloads
cef88c440674…Get - 1.20.1-1.2.113 May 20261.20.10.1 MB12 downloads
58b4bfac072d…Get - 1.16.5-1.2.113 May 20261.16.50.1 MB14 downloads
c04fa40644f4…Get
Frequently asked
Does Sol's AuthLogin work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Sol's AuthLogin declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Sol's AuthLogin support?
Everything the author has declared, from 1.16.5 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Sol's AuthLogin on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which loader does Sol's AuthLogin need?
Forge, NeoForge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Sol's AuthLogin?
Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.
What licence is Sol's AuthLogin under?
LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Sol's AuthLogin?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Sol's AuthLogin safely?
From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .

