UltimateAuth is a powerful, modern authentication system for offline-mode Minecraft servers. Packed with security features, full spawn control, IP-based registration limits, movement lockdown, blindness effects, and a polished user experience.
UltimateAuth is a secure, performance‑first authentication plugin for offline‑mode Paper servers. It delivers a clean login/register
experience while locking down unauthenticated players to prevent impersonation, grief, and unauthorized access.
Whether you run a small SMP or a large network, UltimateAuth ensures every player verifies before they can move, interact, or play — and
everything is fully configurable.
Unauthenticated players cannot:
Optional protections:
Every major feature can be toggled and tuned in config.yml.
| Command | Description | Permission |
|---|---|---|
| /auth setauth | Set auth location | auth.admin |
| /auth setspawn | Set spawn location | auth.admin |
| /auth settings | Open settings GUI | auth.admin |
| /auth reload | Reload plugin config | auth.admin |