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Kyren Pay checkout lets your customer complete payment on a hosted payment page.

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Before you start

Create a product and prepare your success and cancel URLs. If your integration uses the API, your server creates a checkout session and redirects the customer to the returned checkout URL.

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API checkout flow

  1. Your server creates a checkout session.
  2. Kyren returns a hosted checkout URL.
  3. Your frontend redirects the customer to that URL.
  4. The customer completes payment.
  5. Kyren sends a Webhook event to your server.
  6. Your system fulfills the order after confirming payment success.

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Common mistakes

  • Creating checkout sessions from browser JavaScript with an API key.
  • Fulfilling the order before a paid status or payment-success Webhook.
  • Not storing your internal user or order ID in metadata when you need reconciliation.