# Klarna Kosma Auth API

**Canonical:** https://apis.io/apis/klarna-kosma/klarna-kosma-auth-api/  
**Provider:** Klarna Kosma — https://apis.io/providers/klarna-kosma/  
**Base URL:** https://authapi.openbanking.klarna.com  
**Documentation:** https://docs.openbanking.klarna.com/xs2a/auth-api-workflow.html

Klarna Kosma Auth API is one of 6 APIs that [Klarna Kosma](https://apis.io/providers/klarna-kosma/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Open Banking, PSD2, Authentication, and Consumer Sessions. The published artifact set on APIs.io includes API documentation.

The Auth API is the client-session companion to the XS2A API. Whenever the Open Banking flow requires consumer interaction (bank selection, strong customer authentication, multi-step form completion), the Auth API exposes session-scoped endpoints to obtain and submit the forms the consumer must fill out. It is the API surface behind the embeddable XS2A App / JavaScript SDK and is hosted at authapi.openbanking.klarna.com.

## Machine-readable artifacts (4)

- **Documentation** — https://docs.openbanking.klarna.com/xs2a/auth-api-workflow.html
- **Documentation** — https://docs.openbanking.klarna.com/xs2a/authentication.html
- **Documentation** — https://docs.openbanking.klarna.com/xs2a/xs2a-app.html
- **Documentation** — https://docs.openbanking.klarna.com/xs2a/xs2a-app-features.html

## Other Klarna Kosma APIs (5)

- [Klarna Kosma XS2A API](https://apis.io/apis/klarna-kosma/klarna-kosma-xs2a-api/)
- [Klarna Kosma Consent API](https://apis.io/apis/klarna-kosma/klarna-kosma-consent-api/)
- [Klarna Kosma Insights API](https://apis.io/apis/klarna-kosma/klarna-kosma-insights-api/)
- [Klarna Kosma KYC API](https://apis.io/apis/klarna-kosma/klarna-kosma-kyc-api/)
- [Klarna Kosma Payments API](https://apis.io/apis/klarna-kosma/klarna-kosma-payments-api/)

## Tags

Open Banking, PSD2, Authentication, Consumer Sessions

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/klarna-kosma/klarna-kosma-auth-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/klarna-kosma/.