Trade

A server-side Fabric mod for Minecraft 1.21.x that lets players trade items with each other using a custom GUI — no client mod required.

Usage

/trade <player>

• Run the command to send a trade request
• The target player runs the same command back to accept
• Both players get a chest GUI to place their offered items
• Both must click Accept for the trade to go through
• Either player can close the chest or click Cancel at any time

GUI Layout

• Left 4×3 grid — your offered items (12 slots)
• Right 4×3 grid — their offered items (read-only display)
• ✔ Accept — click to accept the trade (turns green when accepted)
• ✗ Cancel — click to cancel and return all items

Features

• Server-side only — works with vanilla clients
• No custom registry entries — uses a vanilla chest container
• Ghost item prevention — locked slots are fully protected against client mods (inventory sorters, Mouse Wheelie, etc.)

Requirements

• Minecraft 1.21.11
• Fabric Loader 0.18.6+
• Fabric API