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Alternative AuthenticationMinecraft mod for 26.1.2

Use third-party authentication servers, like Ely.by, on your server without interfering with Mojang authentication

server onlynewest supported 26.1.2UtilityManagement
Latest version
1.3.0+26.1
Minecraft
1.14 to 26.1.2
Java
Java 25+
Loaders
Quilt, Fabric
Licence
MIT
Downloads
5.8k
Updated
6 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Alternative Authentication servers

One click and Alternative Authentication is installed with the right loader, on hardware built for it.

  • 26.1.2
  • Quilt
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Alternative Authentication declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.1.2Quilt, Fabric25+declared9 Apr 2026
26.1.1Quilt, Fabric25+declared1 Apr 2026
26.1Fabric, Quilt25+declared24 Mar 2026
1.21.11Quilt, Fabric21+declared9 Dec 2025
1.21.10Quilt, Fabric21+declared7 Oct 2025
1.21.9Quilt, Fabric21+declared30 Sept 2025
1.21.8Quilt, Fabric21+declared17 Jul 2025
1.21.7Quilt, Fabric21+declared30 Jun 2025
1.21.6Quilt, Fabric21+declared17 Jun 2025
1.21.5Quilt, Fabric21+declared25 Mar 2025
1.21.4Fabric, Quilt21+declared3 Dec 2024
1.21.3Quilt, Fabric21+declared23 Oct 2024
1.21.2Quilt, Fabric21+declared22 Oct 2024
1.21.1Fabric, Quilt21+declared8 Aug 2024
1.21Quilt, Fabric21+declared13 Jun 2024
1.20.6Quilt, Fabric21+declared29 Apr 2024
1.20.5Quilt, Fabric21+declared23 Apr 2024
1.20.4Quilt, Fabric17+declared7 Dec 2023
1.20.3Quilt, Fabric17+declared4 Dec 2023
1.20.2Quilt, Fabric17+declared20 Sept 2023
1.20.1Quilt, Fabric17+declared12 Jun 2023
1.20Quilt, Fabric17+declared2 Jun 2023
1.19.4Fabric, Quilt17+declared14 Mar 2023
1.19.3Quilt, Fabric17+declared7 Dec 2022
1.19.2Quilt, Fabric17+declared5 Aug 2022
1.19.1Fabric, Quilt17+declared27 Jul 2022
1.19Quilt, Fabric17+declared7 Jun 2022
1.18.2Quilt, Fabric17+declared28 Feb 2022
1.18.1Quilt, Fabric17+declared10 Dec 2021
1.18Quilt, Fabric17+declared30 Nov 2021
1.17.1Quilt, Fabric16+declared6 Jul 2021
1.17Quilt, Fabric16+declared8 Jun 2021
1.16.5Quilt, Fabric8+declared14 Jan 2021
1.16.4Quilt, Fabric8+declared29 Oct 2020
1.16.3Quilt, Fabric8+declared10 Sept 2020
1.16.2Quilt, Fabric8+declared11 Aug 2020
1.16.1Quilt, Fabric8+declared24 Jun 2020
1.16Fabric, Quilt8+declared23 Jun 2020
1.15.2Quilt, Fabric8+declared17 Jan 2020
1.15.1Quilt, Fabric8+declared16 Dec 2019

6 older versions not shown.

Download

From Alternative Authentication’s own host. Nothing is re-hosted here.

1.3.0+26.1release28 Mar 2026

alternative-auth-1.3.0+26.1.jar · 22 KB · for 26.1.2, 26.1.1, 26.1

Download latest
dc02474b7f75…
Older versions9
  • 1.3.0+1.21.9-1.21.1128 Mar 20261.21.11, 1.21.10, 1.21.922 KB462 downloadsb328f193121d…Get
  • 1.2.0+1.21.9-1.21.1129 Dec 20251.21.11, 1.21.10, 1.21.918 KB652 downloadsaf8458a1c0a6…Get
  • 1.2.0+1.21.5-1.21.829 Dec 20251.21.8, 1.21.7, 1.21.6, 1.21.518 KB96 downloads0252c276e6f5…Get
  • 1.1.1+1.20.2-1.21.419 Feb 20251.21.4, 1.21.3, 1.21.2, 1.21.1, 1.21 +5 more16 KB2.6k downloads836782038e94…Get
  • 1.1.1+1.16-1.20.119 Feb 20251.20.1, 1.20, 1.19.4, 1.19.3, 1.19.2 +13 more16 KB669 downloads21f27611b07b…Get
  • 1.1.1+1.14-15.219 Feb 20251.15.2, 1.15.1, 1.15, 1.14.4, 1.14.3 +3 more15 KB78 downloadseba3dcdbb583…Get
  • 1.0.1+1.21.324 Oct 20241.21.335 KB167 downloadsf167b0b2268b…Get
  • 1.0.1+1.21.222 Oct 20241.21.235 KB63 downloads3a43ef4ab590…Get
  • 1.0.0+1.21.126 Sept 20241.21.1, 1.2143 KB335 downloads009c607eeb5e…Get

Frequently asked

Does Alternative Authentication work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version Alternative Authentication 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 Alternative Authentication support?

Everything the author has declared, from 1.14 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Alternative Authentication on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Alternative Authentication support?

Quilt, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Alternative Authentication?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Alternative Authentication under?

MIT, 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 Alternative Authentication?

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 Alternative Authentication safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 28 Mar 2026. 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? .