
JustAVaultUnlockKey
Utilizing Repeatable Trial Vaults, this mod adds a dedicated key to unlock Trial Vaults which is crafted from regular keys.
Screenshots

About this Mod
This mod simply adds a key (texture by Milkev) which is used to unlock trial vaults so you can obtain their loot again. You can easily craft this key 1:1 from a regular trial key, and 1:4 from an ominous key. The recipe is also easily changable with datapacks if you wish to modify the recipe yourself!
Available Versions
How to Install JustAVaultUnlockKey on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "JustAVaultUnlockKey". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.3, 1.21.2 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
JustAVaultUnlockKey server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.4). You can switch loaders with one click in the panel.
Is JustAVaultUnlockKey compatible with fabric and neoforge?
JustAVaultUnlockKey officially supports fabric, neoforge for Minecraft 1.21.4, 1.21.3, 1.21.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with JustAVaultUnlockKey – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if JustAVaultUnlockKey consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install JustAVaultUnlockKey with just one click on your server.