The Ultimate Trading Network

• Server-side trading network with mod id theultimatetradingnetwork; runs on Minecraft 1.21.1 and exposes /shop and /sell.
• /sell <item_id> <count> while holding an item in the main hand creates a listing for the entire held stack. The typed item id and count define the price (items, not money).
• /shop [page] shows listings with clickable [Buy] actions (/shop buy <id>). Buying removes the price items from the buyer, delivers the listed stack to the buyer, and pays the seller. Payments to offline sellers are queued and handed out when they join.
• Listings and queued payments persist in config/theultimatetradingnetwork/listings.json.
• Known limits: listings only remember the item type and stack size (custom NBT/components are not preserved), and there is no in-game command to cancel listings; pricing requires typing the item id explicitly.
• Ideas for later: add listing cancellation/management, richer item serialization to keep enchantments or names, and configurable page size/perms.

Server Validation

✅ Server validation passed - The mod was tested on a real Minecraft server and loaded successfully.