Items from other plugins

The short version

If you can hold it, the shop can sell it. Add held item and Drag and drop store the entire item stack, so anything from any plugin works with no setup — including custom model data, NBT and persistent data.

You only need a written reference when you cannot easily hold the item.

References

Used by /shop additem and by shift-clicking Set icon.

Form	Example
Vanilla material	DIAMOND, minecraft:stone
HeadDatabase	hdb:1234
ItemsAdder	itemsadder:mypack:ruby
Oraxen	oraxen:ruby
Nexo	nexo:ruby
MMOItems	mmoitems:SWORD:CUTLASS
EcoItems	eco:ruby

Run /shop additem with no arguments and it lists which providers are actually installed on your server.

How this works

Every integration goes through reflection rather than a compile-time dependency. That is deliberate: six item plugins would otherwise mean six repositories that must stay reachable for the plugin to build, and a jar that refuses to load when one of them changes a method signature.

A missing plugin is a reference that does not resolve — reported plainly — rather than a broken shop.

Selling matches on NBT

Selling uses isSimilar, so a vanilla diamond sword cannot be sold into a listing for a custom one built on the same material. This is what stops players laundering plain items into custom-item prices.