GemCards: the platform that buys automatically before a competitor gets the chance.
Selling on five marketplaces at once meant double sales, wrong prices and endless manual work. We built one platform for it.
The challenge
GemCards sells tens of thousands of trading cards across five marketplaces at once: CardMarket, CardTrader, Vinted, eBay and TCGplayer. Without central control, three problems appeared at once.
The same card could be sold twice, prices drifted within a single day without anyone noticing, and underpriced cards had to be found and bought by hand. That last part took the most time and delivered the least profit.
What we built
We built a custom Laravel platform that syncs stock and prices in real time across all five channels. As soon as a card is underpriced somewhere, the system buys it automatically, without anyone having to look.
What the system does
The result
We now sell on five platforms at once without the extra work. The system just handles it.