Start here

Snapcaster hosts buyer Browse, Checkout, payment, Orders, and payouts. Your Platform sends each Seller’s Listings and On-hand quantity into Snapcaster. After a sale, Snapcaster sends either a complete Order for your Platform to fulfil or an Inventory adjustment that keeps your On-hand accurate.

All money amounts on the partner surface are integer minor units in Canadian dollars. Canonical skuId and productId values are TCGplayer identifiers.

Start with the six-step golden path

1. Verify your Seller-scoped Marketplace API key with GET /me.

2. Push one curated Listing with POST /listings.

3. Confirm the Listing appears in buyer Browse.
4. Receive the scripted test Order.
5. Report that the Order shipped.

6. Confirm the shipped Order while the test-mode payout moves.

The complete walk is designed to take about ten minutes, apart from the sandbox’s five-minute payout sweep.

What comes next

Read Choose your path before implementing webhook handling. Both paths share credentials, Listing push, and Browse. They branch only at who fulfils the Order and which events your Platform receives.

The buyer-facing Browse reference is informational. A Platform does not implement Browse endpoints; they show how a Seller’s Listings appear to Buyers.

Need help?

Email Marketplace support with this page and the sandbox environment prefilled.

Never include an API key or Signing secret in the message.