https://woodsshin.itch.io/ue4-steam-inventory-service
Fully integrated Steam Inventory Service except for trading, promotion. It comes with SteamItem Converter which generates item definitions in json. Included Manual and sample project. Plugin supports 4.11 - 4.17.
UE4 Forum : https://forums.unrealengine.com/unreal-engine/marketplace/1347284-steam-inventor...