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

SHELL

curl https://api-global.test.klarna.com/v2/accounts/{partner_account_id}/payment/authorize \
  -H 'Authorization: Basic <API key>' \
  -H 'Content-Type: application/json' \
  -H 'Klarna-Payment-Token: krn:payment:eu1:payment-token:...' \
  -d '{
        "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.