FX-Marketplace is a marketplace system for RedM servers where players can list items and weapons for sale. Sellers can specify auction settings, product categories, listing duration in days, and payment type through a store management panel. Server owners can configure a blacklist to prevent certain items from being sold and control which players are authorised to open stores. Buyers can access the marketplace freely.

Auction participants receive automatic refunds if outbid—immediately if online, or upon next login if offline. Store owners can wait for auction expiration or accept instant offers. The system includes earnings tracking, stock management, and a shop wallet.