Marketplace syncing

Sell your cards everywhere buyers shop.

List your catalogue across connected TCG marketplaces, reach more buyers and keep every channel selling from one stock figure, managed in one place.

Follow the workflow Book a demo
Card Companion integration view connecting Cardmarket listings with Shopify stock

01 Reach more buyers

Connect to TCG marketplaces.

Connect your store to the TCG marketplaces your customers already use. The cards in your catalogue can be listed across each connected channel, helping more buyers discover what you have available.

Set each product up once instead of rebuilding the same listing marketplace by marketplace. As you add new channels, your existing catalogue is ready to go with you.

Where your catalogue can sell

List the same products across connected marketplaces

4 live
Marketplace Connection Availability
Cardmarket Direct integration Live
CardTrader Direct integration Live
Mage Cards Direct integration Live
eBay Marketplace Connect Live
Mana Pool Direct integration In development
TCGplayer Direct integration In development
Set up each product once list it across connected marketplaces

02 Keep stock in sync

Sell each card without selling it twice.

Every connected channel sells from the same available quantity. When a card sells through one channel, the remaining listings are adjusted to match.

Stock changes flow the other way too. Book in a trade-in, add new stock or correct a count, and each connected marketplace follows automatically.

Dawnsire, Sunstar Dreadnought

Near Mint · English · Foil

Sold
SKU
cc-nm-en-foil
Before sale
1 available
After sale
0 available
Channel Change Available
Cardmarket Sold here 0
Store Adjusted 0
CardTrader Adjusted 0
Mage Cards Adjusted 0
Sold once unavailable everywhere else

03 Stay in control

Add new channels in a single click.

Use the same products across your website, connected marketplaces and any other sales channels you choose.

Start with the marketplaces your customers already use, then add more as your business grows. You keep your own seller accounts and remain in control of the fees, pricing and settings for each channel.

Shopify at the centre of connections to Cardmarket, CardTrader, Mage Cards, eBay, TCGplayer and Mana Pool
Shopify at the centre: your connected channels use the same products and stock count.

Marketplace syncing, explained

Questions before you connect.

Which marketplaces can we sell on today?
Cardmarket, CardTrader and Mage Cards connect directly. eBay connects through Shopify Marketplace Connect. Mana Pool and TCGplayer are in development.
Do we need our own marketplace seller accounts?
Yes. Card Companion connects to the seller accounts you already hold. You keep control of each account, including its fees, settings and relationship with the marketplace.
Do we need to split stock between channels?
No. Every connected channel sells from the same available quantity, so each card can remain listed everywhere until it sells. There is no need to reserve copies for individual marketplaces.
Does connecting a marketplace change our store?
No. Your products, theme, domain and checkout remain unchanged. Card Companion handles the card-specific listing and stock work around your existing store.
More marketplace questions
How quickly does stock update after a sale?
Each marketplace processes updates on its own schedule, so a short delay can occur. If an update is rejected, it remains visible for your team to review rather than failing silently.
Where do marketplace orders appear?
They enter the same order flow as your website and counter sales, so your team can pick and pack them in the same way. See how this works in the orders and fulfilment workflow .
Do prices sync as well as stock?
Yes. Your pricing rules determine the price for each condition, language and finish, and connected marketplaces list from those prices. See how this works with automatic pricing.

Before and after every sale

Show us where you sell today.

We’ll map how one stock figure could serve each connected marketplace without giving up control.

Map my sales channels