Klarna Docs - Auto-capture

Auto-capture

Streamline payment processing for intangible goods with auto-capture by setting capture to NOW, ensuring instant transactions and real-time tracking via webhooks.

In the request to the Payment Authorize API, setting the capture parameter to NOW in the request_payment_transaction object will automatically capture the transaction upon creation, making it ideal for intangible goods where immediate provisioning is expected.

Sample Request

POST /accounts/{partner_account_id}/payment/authorize

Parameters	Value
`Klarna-Interoperability-Token`	eyJhbGciOiJIUzI1NiIsInR5cCI6IkpX....

JSON

{
  "currency": "USD",
  "request_payment_transaction": {
    "amount": 11800,
    "payment_transaction_reference": "acquiring-partner-transaction-reference-1234"
    "capture": "NOW"
  }
}

The payment_capture_id will be returned in the response and should be stored for future reference.

Sample Response

JSON

{
  "payment_transaction_response": {
    "result": "APPROVED",
    "payment_transaction": {
      "payment_transaction_id": "krn:payment:eu1:transaction:6debe89e-98c0-[...]",
      "payment_transaction_reference": "acquiring-partner-transaction-reference-1234",
      "amount": 11800,
      "currency": "USD",
      "payment_funding": {...},
      "payment_pricing": {...},

Every successful payment capture operation will trigger a payment transaction captured webhook to which you subscribe to.

Event name	When
`payment.transaction.captured`	To track successful payment capture, whether autocapture or manual, ensuring proper record-keeping.