MINECRAFTBIBLE
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Auth, Secure server-side authentication solution featuring Argon2id hashing, 2FA TOTP, and session persistence.
Vouch is a secure, server-side authentication mod designed for modern Minecraft. It handles player registration, login, and two-factor authentication entirely on the server, meaning players do not need to install anything on their clients to join.
We currently support Minecraft 1.21.1 through 1.21.4 on both Fabric and NeoForge.
When a player joins, they are placed in a "pre-auth" state where they cannot move, interact, or see chat until they log in.
/register <password> <password> to create an account./login <password> to access the server.Security & Performance
We use Argon2id for password hashing, which is the current industry standard for security. Crucially, all database operations and hashing run asynchronously on separate threads. This ensures that Vouch has zero impact on your server's TPS, even during heavy login spikes.
Two-Factor Authentication (2FA)
Players can optionally secure their accounts with TOTP 2FA. When enabled via /2fa setup, the mod renders a QR code directly onto an in-game map item. Players can scan this with Google Authenticator, Authy, or Aegis to generate time-based codes.
Database Support
Vouch is flexible with data storage. It defaults to H2 (no setup required), but fully supports SQLite, MySQL, and PostgreSQL via HikariCP for larger servers that need connection pooling.
Customization
The mod is localized in English (en_us) and Spanish (es_mx), but all messages can be customized. You can also configure sound effects, titles, and boss bars to match your server's style.
For full configuration guides, permission nodes, and advanced setup, please visit our documentation:
This mod is strictly server-side. Do not install it on the client.
