Item Seller

Item Seller

This is a mod that lets you select an item and then lets you automatically sell it

by
102 Downloads
fabriceconomy
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Screenshots

Ui

About this Mod

Item Seller for Minecraft 1.21.10

MAKE SURE THAT THIS MOD IS ALLOWED ON YOUR SERVER.

This mod was made with the usage of AI and only made for personal use expect bugs.

A client-side Fabric mod that automates selling a desired item by pressing a customizable hotkey (default: F6).

Features

  • Press F6 (configurable) to automatically execute /sell command once
  • Press F7 (configurable) to automatically execute /sell command in a loop
  • Press F8 (configurable) to selected the desired item to sell
  • Automatically moves the selected item from your inventory into the opened container
  • Client-side only - works on servers that have the /sell command
  • Customizable keybinding through Minecraft's controls menu

Requirements

  • Minecraft 1.21.10
  • Fabric Loader 0.16.9 or higher
  • Fabric API 0.110.5+1.21.10 or higher
  • Java 21

Installation

  1. Install Fabric Loader for Minecraft 1.21.10 from https://fabricmc.net/use/
  2. Download and install Fabric API from https://modrinth.com/mod/fabric-api
  3. Download and install this mod
  4. Place the JAR file into your .minecraft/mods folder
  5. Launch Minecraft with the Fabric profile

Building from Source

Prerequisites

  • Java Development Kit (JDK) 21 or higher
  • Git (optional)

Build Steps

  1. Open a terminal/command prompt in the mod directory
  2. Run the build command:
    ./gradlew build
    
    On Windows:
    gradlew.bat build
    
  3. The compiled mod JAR will be in build/libs/itemseller-1.0.0.jar

Usage

  1. Join a server that has the /sell command enabled
  2. Press F8 (or your custom keybinding) and select an item
  3. Press F7 (or your custom keybinding)
  4. The mod will:
    • Execute /sell command
    • Wait for the container to open
    • Automatically move the selected item from your inventory to the container
    • Press Esc and Loop

Configuration

To change the keybinding:

  1. Open Minecraft
  2. Go to Options → Controls → Key Binds
  3. Scroll to the "Puuklys Item Seller" category
  4. Click on "Toggel Auto-Sell" and press your desired key
  5. Click "Done"

How It Works

  1. When you press the hotkey, the mod sends the /sell command to the server
  2. The mod waits up to 2 seconds for a container GUI to open
  3. Once the container opens, it scans your entire inventory for the desired item
  4. All found items are shift-clicked into the container automatically

Compatibility

  • Client-side only (doesn't need to be installed on the server)
  • Works with any server that has a /sell command that opens a container
  • Compatible with most other Fabric mods

Troubleshooting

The mod doesn't move items:

  • Make sure the /sell command actually opens a container/GUI
  • Check that you have the desired item in your inventory
  • Verify the server allows the /sell command

Keybinding doesn't work:

  • Check for keybinding conflicts in Controls settings
  • Make sure the key isn't bound to another action

Build errors:

  • Ensure you have JDK 21 or higher installed
  • Check that you have internet connection (Gradle needs to download dependencies)

License

MIT License - Feel free to modify and distribute

Support

This mod was created for Minecraft 1.21.10 specifically. If you encounter issues, make sure:

  • You're running the correct Minecraft version
  • Fabric Loader and Fabric API are properly installed
  • The server supports the /sell command

Available Versions

Item Seller 1.1.0release
MC 1.21.10fabric
December 31, 2025
Item seller 1.0.0release
MC 1.21.10fabric
December 31, 2025

How to Install Item Seller on Your Server

1

Order Server

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

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.10

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Item Seller 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 (1.21.10). You can switch loaders with one click in the panel.

Is Item Seller compatible with fabric?

Item Seller officially supports fabric for Minecraft 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Item Seller – how to optimize performance?

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

Rent Modded Server

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Recommended RAM
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Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.10