Bukkit

Vault is a Economy/Permission plugin for hooking into the various Economy and Permission plugins.

Set up custom villager shopkeepers

The essential plugin for Spigot servers.

A collection of useful commands and features for server admins and players.

Multiverse Inventories allows you to control who and what can cross world borders!

Allows server admins to easily modify how Minecraft works without programming anything

The best chest&sign shop system for Bukkit

This is a easy to use GUI shop plugin.

Inexpensively protects your ores from cheaters.

Replicate first-person shooters with advanced gun-mechanics and a vast number of exciting and fully customisable features.

Enchant any item with whatever you want, add lore to items, rename items too! UberEnchant has it all!

Get custom items on join.

The all in one Shop plugin, With a sexy GUI, Sleek code, and light weight performance!

Jobs Reborn

All what you need for economy on your server. Money/Shops/Jobs/Towns

Another auction house plugin.

Unique and challenging custom achievements or quest-like objectives on your server! Books, fancy GUI, rankings, rewards, effects and more!

Commandless, Multi World, Player Owned Shops (Vault)

LimitDrops

Adds Lotto, Loans, Stocks