Accept USDC payments through a hosted merchant checkout.

Payclave checkout sessions fit alongside an existing cart, invoice, or order service. The merchant system remains responsible for price and inventory, then creates a checkout session with the trusted amount when the customer chooses stablecoin payment.

The returned checkout URL can be opened from a normal payment button. Status can be read through the API and received through signed webhooks, so the existing fulfillment workflow stays in control.

The customer-facing flow may support different source tokens or networks. The merchant record still identifies USDC as the settlement token, the invoice amount, and the final settlement evidence used for reconciliation.

This keeps payment flexibility at checkout from creating ambiguous internal records for finance, support, or engineering teams.

Payclave does not trust a browser callback as payment proof. Verification checks the transaction hash, destination, token, chain, amount, timing, confirmation state, and duplicate transaction use before the invoice becomes paid.

Webhook attempt logs and replay controls help operators recover when the merchant endpoint is temporarily unavailable without losing the payment record.