ModsJava
PopAuth
A simple, no-nonsense authentication plugin for Paper servers. No IP tracking, no antibot, no bloat — just a password.
⬇ Download on ModrinthPopAuth
A simple, no-nonsense authentication plugin for Paper servers. No IP tracking, no antibo, no bloat — just a password.
Requirements
- Paper 1.21+
- Java 21
Commands
| Command | Description |
|---|---|
/register <password> |
Create an account |
/login <password> |
Log into your account |
/fastlogin |
Toggle fast login (skips login on join) |
/fastlogin Y/N |
Confirm or cancel fast login toggle |
/popauth help |
Show help |
/popauth reload |
Reload config and players.yml |
Permissions
| Permission | Description | Default |
|---|---|---|
popauth.admin |
Access to /popauth commands |
OP |
Configuration
config.yml
password:
min-length: 4
max-length: 32
premium: true
players.yml — managed automatically, no need to touch it.
Theo8:
password: biggestBird
fastlogin: false
Behaviour
- On join, the player is frozen: blindness, adventure mode, no movement, chat blocked, inventory locked.
- If the player does not authenticate within 30 seconds, they are kicked.
- Fast login skips the login prompt entirely on every subsequent join.
Links
Made by ItzPopelka | Published on Modrinth | Donate me on PayPal
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as popauth-1.0.1.jar — drop this file into the mods folder
- Download size: 14 KB
- Download link checked 13 Sept 2026 — working
These come from our own check of the pack file, not from the source page.