Keychains: Supplementaries

This is an add-on for Supplementaries that adds keychains to store keys and use them

4.3K Downloads

neoforgeequipmentgame-mechanics

Rent Server with this Mod

Screenshots

About this Mod

Keychains is a lightweight addon for Supplementaries that adds a convenient keychain item for managing your keys.

Just craft a keychain then Hold Shift + Right-click to open the keychain ui
then you can place your keys there! They work exactly like Supplementaries keys, so they still work in your inventory and curios slot!

That's really all there is to it. It's a simple mod lmao :P

Available Versions

Keychains: Supplementaries 1.1release

MC 1.21.1neoforge

March 21, 2026

Keychains: Supplementaries 1.0release

MC 1.21.1neoforge

November 28, 2025

How to Install Keychains: Supplementaries on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Keychains: Supplementaries". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Keychains: Supplementaries server crashes on startup – what to do?

Most common cause: wrong neoforge 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 Keychains: Supplementaries compatible with neoforge?

Keychains: Supplementaries officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Keychains: Supplementaries – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Keychains: Supplementaries 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.