Dynamically Whitelist
Mod to check player access to the server by request to API. API can be found or made. API has to have a working with Database, in which players uuid are kept
About this Mod
Dynamically Whitelist
Dynamically Whitelist is a mod that replaces the standard Minecraft JSON whitelist with an automated system.
When a player joins, the mod sends a POST request to an API connected to your database. The API verifies the player and returns:
200 — the player is allowed to join
403 — the player is denied, and the mod disconnects them
POST request format:
{
"uuid": "<UUID of the joining player>"
}
This allows the server to manage whitelist entries dynamically without manually editing the JSON file. In the future, direct database integration may also be added.
Available Versions
How to Install Dynamically Whitelist 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Dynamically Whitelist". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Dynamically Whitelist 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 (1.21.1). You can switch loaders with one click in the panel.
Is Dynamically Whitelist compatible with fabric?
Dynamically Whitelist officially supports fabric for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Dynamically Whitelist – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Dynamically Whitelist 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.
Similar Mods
Rent Modded Server
Install Dynamically Whitelist with just one click on your server.