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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.

server onlynewest supported 1.21.1UtilityGame MechanicsManagement
Latest version
1.21.1-v1.3
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
324
Updated
9 d ago
Available on
Modrinth
Space NodePartner

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
Deploy a serverFrom €0.90 per GB

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.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.16.5Forge, NeoForge8+declared14 Jan 2021

Download

From Sol's AuthLogin’s own host. Nothing is re-hosted here.

1.21.1-v1.3release24 Jul 2026

solsauthlogin-1.21.1-neoforge-1.21.1-1.3.jar · 0.1 MB · for 1.21.1

Download latest
284673e96258
Older versions10
  • 1.20.1-v1.324 Jul 20261.20.10.1 MB29 downloads85a31e61889dGet
  • 1.16.5-v1.324 Jul 20261.16.50.1 MB7 downloadsddf6b7e262f4Get
  • 1.20.1-1.2.2821 Jun 20261.20.10.1 MB84 downloads897f9f3faa89Get
  • 1.16.5-1.2.2821 Jun 20261.16.50.1 MB27 downloads820c5dabb77cGet
  • 1.20.1-1.2.2718 May 20261.20.10.1 MB116 downloadsf56ad3dcdb71Get
  • 1.16.5-1.2.2718 May 20261.16.50.1 MB17 downloads89087dae5b81Get
  • 1.16.5-1.2.213 May 20261.16.50.1 MB17 downloads51980096b0c2Get
  • 1.20.1-1.2.213 May 20261.20.10.1 MB13 downloadscef88c440674Get
  • 1.20.1-1.2.113 May 20261.20.10.1 MB12 downloads58b4bfac072dGet
  • 1.16.5-1.2.113 May 20261.16.50.1 MB14 downloadsc04fa40644f4Get

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.

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .