
Modrinth · Minecraft mod
AuthSecured
Password authentication for Paper, Purpur and Fabric Minecraft servers
Quick answer
Which AuthSecured release matches 1.21.5?
AuthSecured 1.3.0+mc1.21.5 targets 1.21.5 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is AuthSecured required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does AuthSecured 1.3.0+mc1.21.5 need?
1.3.0+mc1.21.5 on 1.21.5. Every mod below is checked against that same setup.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add AuthSecured without breaking your instance.
Built for AuthSecured 1.3.0+mc1.21.5 on 1.21.5. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.3.0+mc1.21.5. It targets 1.21.5 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.3.0+mc1.21.5. It opens that exact file at the source.
About this project
What does AuthSecured add?
AuthSecured
AuthSecured adds password authentication to Minecraft dedicated servers. It is available as a Paper/Purpur plugin and as a Fabric server mod.
Compatibility
Current 1.2.x builds target Minecraft 1.21 through 1.21.11 and 26.1 through 26.2. Fabric requires the JAR whose +mc... suffix exactly matches the server version, plus the matching Fabric API. Do not install a Fabric JAR built for another Minecraft version. Paper/Purpur uses the Paper JAR. Minecraft 1.21.x requires Java 21; 26.x requires Java 25. Older historical releases may have different compatibility.
Features
- Argon2id password hashing
- SQLite or PostgreSQL storage
- Redis or local rate limiting
- Configurable restrictions before authentication and an authentication timeout
- Optional reconnect sessions
- English, Russian, Spanish, Italian, and French messages
- Admin status, doctor, audit, granular permissions, and temporary password reset
- Optional Discord webhook and Telegram failed-login alerts
Installation
Install the Paper JAR in plugins/ or the matching Fabric JAR and Fabric API in mods/. Do not install both platform artifacts on one server. Review the generated configuration before admitting players.
Commands: /register, /login, /changepassword, /logout, /authstatus, and /authadmin.
Author: touchfalls. License: MIT.
Project description from Modrinth.
Pick your setup
AuthSecured by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.3
2 loader builds26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader buildsShowing the newest 12 of 17 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
AuthSecured versions and loaders
1.3.0+mc1.21.5
authsecured-fabric-1.3.0+mc1.21.5.jar
30 Oct 2026
1.3.0
authsecured-paper-1.3.0.jar
30 Oct 2026
1.2.7+mc1.21.5
authsecured-fabric-1.2.7+mc1.21.5.jar
26 Oct 2026
1.2.7
authsecured-paper-1.2.7.jar
26 Oct 2026
1.2.6+mc1.21.5
authsecured-fabric-1.2.6+mc1.21.5.jar
24 Oct 2026
1.2.6
authsecured-paper-1.2.6.jar
24 Oct 2026
1.2.5+mc1.21.5
authsecured-fabric-1.2.5+mc1.21.5.jar
24 Oct 2026
1.2.5
authsecured-paper-1.2.5.jar
24 Oct 2026
1.2.4+mc1.21.5
authsecured-fabric-1.2.4+mc1.21.5.jar
23 Oct 2026
1.2.4
authsecured-paper-1.2.4.jar
23 Oct 2026
Looking for an older file? The official Modrinth project page is in Resources.