Klarna API · Endpoint removal
/checkout/v3/* stops working
Stopped working
On September 15, 2026, Klarna will shut down access to /checkout/v3/* endpoints on api.klarna.com. After that date, calls to these endpoints will fail. Merchants operating through Kustom will no longer have access to Klarna's API.
What to use instead of these calls
Klarna Checkout is now Kustom Checkout. To migrate, direct your requests to api.kustom.co using the same /checkout/v3 paths and parameters.
Calls it hits
/checkout/v3/*
Since September 15, 2026, merchants operating through Kustom no longer have access to the Klarna Merchant Portal or Klarna's API
Facts
- API
- Klarna API
api.klarna.com - Kind
- Endpoint removal
- Takes effect
- September 15, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated