REI Custom Command
Adds your frequently used commands to bookmarks/favorites in REI
About this Mod
This mod allows you to add frequently used commands to bookmarks/favorites in REI.
To add a command, simply type the commands in the search bar (starting and separated by "/") and press enter.
To name a bookmark, type some words before the "/" when adding the bookmark. (can use "$" for formatting codes)
Full feature list:
1.21+
Text component parsing is supported. You can use it to add hex color or localizable text. For example:
{text:HI,color:"#FFAA00"}/say hi
(In this example, you can see the lenient JSON mode is enabled. So you don't have to always enter quotes.)
You can also specify an item as an icon. For example:
{item:"minecraft:apple"}/say hi
Alternatively, to assign tags to the item:
{item:"potion[potion_contents={potion:\\"minecraft:regeneration\\"}]"}/say hi
A small command block will be displayed on the icon. Holding CTRL to hide it.
When adding a custom command, press CTRL+Enter to keep the contents in the search box.
Multiple commands: Separated by "/", escaped by "\"
/tellraw @a "Note about \\"REICC\\":" /say You can download it from CurseForge\/Modrinth
1.19-1.20
Text component parsing is supported. You can use it to add hex color or localizable text. For example:
{text:HI,color:"#FFAA00"}/say hi
(In this example, you can see the lenient JSON mode is enabled. So you don't have to always enter quotes.)
You can also specify an item as an icon. For example:
{item:"minecraft:apple"}/say hi
Alternatively, to assign tags to the item:
{item:{id:potion,tag:{Potion:regeneration}}}/say hi
A small command block will be displayed on the icon. Holding CTRL to hide it.
When adding a custom command, press CTRL+Enter to keep the contents in the search box.
New in 1.20.1+: Multiple Commands
Separated by "/", escaped by "\"
/tellraw @a "Note about \\"REICC\\":" /say You can download it from CurseForge\/Modrinth
Available Versions
How to Install REI Custom Command 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 "REI Custom Command". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.1 (+4 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
REI Custom Command 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 REI Custom Command compatible with fabric and forge and neoforge and quilt?
REI Custom Command officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.1, 1.21, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with REI Custom Command – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if REI Custom Command 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 REI Custom Command with just one click on your server.