How many channels can I sync to simultaneously?

All of them — no channel limits. Your inventory pushes to every channel you connect.

What happens if two marketplaces buy the last copy at the same time?

Automatic cancellation of the lower-priority duplicate and refund to the customer. You set the channel priority.

Can I set different prices per channel?

Yes. Channel-specific pricing rules let you tune margins per marketplace.

How fast does stock propagate across channels?

Cadence varies by channel, API limits, and the enabled workflow. We confirm expected background-sync behaviour for each connection during onboarding.

Do I need API credentials for CardNexus?

Yes. CardNexus uses a Public API key from your seller account. The key and required account, inventory, listing, and sales scopes are validated during onboarding.

Multi-marketplace

Multi-marketplace TCG sync

Modern card shops sell on multiple channels simultaneously — and the hardest problem isn't listing, it's not overselling. Storefront Pro connects CardNexus, Cardmarket, eBay, Cardtrader, Mana Pool, Shopify, CardSynced, and your own storefront to one inventory workflow.

Sync to CardNexus, Cardmarket, eBay, Cardtrader, Mana Pool, Shopify, and CardSynced
CardNexus connects through its Public API using your seller API key
Real-time inventory sync across all channels
Channel-specific pricing rules
Unified order dashboard for every marketplace
Automated conflict resolution on simultaneous sales
Condition-aware listings on every channel that supports them

Storefront Pro admin dashboard showing orders, revenue, live activity, and operational tools. — Storefront Pro admin dashboard showing orders, revenue, live activity, inventory tools, and connected store operations.

Why multi-channel is hard

One NM Black Lotus can only be sold once

When a card is listed on six marketplaces and one of them buys it, you have seconds to pull it from the other five. Spreadsheets and manual processes can't handle this. Storefront Pro is built for exactly this scenario.

Real-time stock sync

Sales on any channel update inventory everywhere within seconds. No oversells, no angry refund emails.

Seven-channel coverage

CardNexus, Cardmarket, eBay, Cardtrader, Mana Pool, Shopify, and CardSynced are the seven supported channels.

Channel pricing rules

Different margins and fee buffers per marketplace while your own storefront keeps its independent pricing rules.

Conflict resolution

Two marketplaces buy the last copy at the same time? We auto-cancel the lower-priority order and refund the customer cleanly.

Unified orders

Pick, pack, and ship from one order list regardless of which channel the sale came from.

Selective channel exclusion

Exclude specific products, catalogues, or conditions from specific channels. Keep graded cards off Cardmarket, route sealed to eBay only.

FAQ

Frequently asked questions

How many channels can I sync to simultaneously?: All of them — no channel limits. Your inventory pushes to every channel you connect.
What happens if two marketplaces buy the last copy at the same time?: Automatic cancellation of the lower-priority duplicate and refund to the customer. You set the channel priority.
Can I set different prices per channel?: Yes. Channel-specific pricing rules let you tune margins per marketplace.
How fast does stock propagate across channels?: Cadence varies by channel, API limits, and the enabled workflow. We confirm expected background-sync behaviour for each connection during onboarding.
Do I need API credentials for CardNexus?: Yes. CardNexus uses a Public API key from your seller account. The key and required account, inventory, listing, and sales scopes are validated during onboarding.

Storefront Pro

Run every channel from one brain

Stop managing six spreadsheets. One inventory, every marketplace, real-time sync. $1,000 USD setup + 2% on TCG item sales.

Tell us how your store works and we'll help you choose the right package. All published pricing is billed in USD: Storefront Pro is $1,000 USD setup + 2% on TCG item sales, and Enterprise starts from $2,499 USD/month with 0% sales fees. Custom packages are scoped separately.