Carrd on Polygon

Accept USDT & USDC through Carrd with settlement on Polygon. Integrate Zateway with Carrd. Carrd landing pages with Pay with Crypto CTAs. Non-custodial USDT & USDC on Polygon, Solana, Base, BSC, Arbitrum, Optimism.

Steps

1. Create a Zateway account and copy your API key.
2. Connect your self-custody wallet address for Carrd (Polygon) settlements.
3. Create a payment session via API, plugin, or payment link for Carrd (Polygon).
4. Redirect customers to hosted checkout or embed the widget in Carrd (Polygon).
5. Verify HMAC-signed webhooks and fulfill the order in Carrd (Polygon).
6. Select Polygon when creating the payment session for lowest surprise fees.

POST https://zateway.com/api/v1/sessions with x-api-key — then open checkoutUrl from Carrd.
// Prefer chain: "polygon" for Carrd checkout