ModsFinder

Authentication

by Antti

Authentication lets Minecraft players sign in to web applications through an Nginx auth request, so one login covers the related sites.

FabricMIT LicenseOpen source1.0 – 26.2

What it does

The mod checks who a Minecraft player is before a web application grants access. Authentication is a single piece of a larger ecosystem for locking down Minecraft server websites such as maps and analytics pages. Nginx sends each request to the mod, which decides whether the visitor may continue.

The mod can also run as a standalone plugin, so a web application can use access control without the rest of the ecosystem. The author notes that a companion Authorization piece probably follows, but it is not part of this release.

Running the setup needs external software and several open ports. It is most likely not possible on Minecraft hosting services, which tend to lack the control required; a VPS or dedicated server is the usual choice. Authentication is open source under the MIT License and is published for Fabric, Paper and Spigot.

Key features

  1. Player sign-in for web apps

    Web applications can require a Minecraft account before they serve a page, tying access to the player's identity.

  2. Nginx auth request

    The check runs through an Nginx auth request, so protected sites can sit behind a proxy without changing their own code.

  3. Standalone plugin use

    The plugin can guard a few web applications on its own, without the other pieces of the ecosystem.

  4. Map and analytics protection

    Server-related pages such as maps and analytics can be kept away from anyone who is not a verified player.

Compatibility

Latest build for each game version and loader.

26.x1 of 1 version with builds
26.10.5.0-fabric
1.21.x12 of 12 versions with builds
1.21.110.5.0-fabric
1.21.100.5.0-fabric
1.21.90.5.0-fabric
1.21.80.5.0-fabric
1.21.70.5.0-fabric
1.21.60.5.0-fabric
1.21.50.5.0-fabric
1.21.40.5.0-fabric
1.21.30.5.0-fabric
1.21.20.5.0-fabric
1.21.10.5.0-fabric
1.210.5.0-fabric
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x6 of 6 versions with builds
1.15.x3 of 3 versions with builds
1.14.x5 of 5 versions with builds
1.13.x3 of 3 versions with builds
1.12.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

51 older game versions (1.0 – 1.12.1) not shown. All files on Modrinth

Use cases

Locking down server maps

A server owner can limit a map page to players who have joined the server.

Protecting analytics pages

Analytics dashboards for a server can be hidden from the public and shown only to verified accounts.

Who it’s for: Server owners who run websites next to a Minecraft server and have some experience with Nginx, networking and a VPS or dedicated server. The author expects a basic understanding of Nginx before setup.

How it compares

Full comparison

combo Auth is server-side only, open source under the MIT License and published for 1.7.5 – 1.21. Authenticate is also server-side only, but it is open source under the Apache License 2.0 and covers 1.7.10 – 26.3. AuthProxy is server-side only and open source under the GNU Lesser General Public License v3.0 or later, for 1.16 – 26.1.1, and fits proxy-based setups as well.

ModLoadersGame versionsEnvironmentUpdated
AuthenticationFabric1.0 – 26.2Not published2026-03-29
combo AuthFabric1.7.5 – 1.21Server-side only2024-06-13
AuthenticateFabric1.7.10 – 26.3Server-side only2026-09-24
AuthProxyFabric1.16 – 26.1.1Server-side only2026-04-05

Questions

Does Authentication need external software?

Yes. The setup needs external software and several open ports, so it is not a plug-and-play addition.

Can Authentication run on Minecraft hosting services?

Most likely not. The author notes that a proper server such as a VPS or dedicated server is needed.

Does Authentication need to be installed on clients?

Players join without installing it, since the mod runs on the server side.

In the catalog

Authentication 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.

Similar mods

What the author says

This plugin allows the authentication of Minecraft players in web applications via Nginx auth_request. It is a single puzzle piece in this ecosystem to secure and lock down your Minecraft server related websites such as maps or analytics pages. You can use this plugin as a standalone and let the web application do…
Antti, on the Modrinth page

Official listing

Owner
Antti
Published
2023-05-19
Updated on Modrinth
2026-03-29
Facts verified
2026-10-15

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