Klarna Supported Banks: 63+ Institutions (2026)

What is Klarna?

Klarna is an open banking API aggregator that provides connectivity to financial institutions. Through Klarna's platform, developers can integrate with 63+ banks and financial institutions through a single API integration.

API aggregators like Klarna simplify the process of connecting to banks by providing:

Standardized API interfaces across multiple banks
Pre-built authentication flows
Data normalization and enrichment
Regulatory compliance handling

Learn more about how open banking APIs work in our [Open Banking API guide](/open-banking-api), or browse the bank coverage below to see which financial institutions are supported by Klarna.

#Klarna Supported Banks (63)

Showing 63 of 63 banks tracked

Name	APIs	View
ABN Amro	6	View
Argenta	-	View
ASN BANK	3	View
Axa Bank	4	View
Banca MPS (Monte dei Paschi di Siena)	4	View
Banca Nazionale del Lavoro	3	View
Banco BPM	3	View
Banco Sabadell	3	View
Bank Nagelmackers	4	View
BANK OF SCOTLAND	6	View
Bank Pekao	4	View
Barclays	9	View
BBVA	3	View
Belfius	3	View
Beobank	3	View
BNP PARIBAS	3	View
BNP Paribas Fortis	2	View
bunq	4	View
CaixaBank	3	View
CheBanca!	3	View
Citi	7	View
Crédit Agricole	-	View
Crédit Agricole Italia	1	View
Crédit Mutuel	3	View
Crelan	4	View
Danske Bank	3	View
Deutsche Bank	4	View
Eurobank Ergasias	3	View
Fidor Bank	6	View
First Direct	9	View
Getin Noble Bank	-	View
HANDELSBANKEN	2	View
HSBC	9	View
ING	5	View
ING DiBa	5	View
Intesa Sanpaolo	7	View
KBC	5	View
Klarna	10	View
LA BANQUE POSTALE	-	View
Lloyds Bank	9	View
mBank	3	View
Metro Bank	3	View
NATIONWIDE BUILDING SOCIETY	4	View
NatWest	3	View
Nordea	5	View
OP Financial Group	8	View
PKO	3	View
RABOBANK	6	View
Raiffeisen Bank	6	View
RBS (Royal Bank of Scotland)	2	View
REGIOBANK	3	View
Santander	3	View
SEB	2	View
SNS	3	View
Société Générale	3	View
SWEDBANK	7	View
Sydbank	3	View
The Co-Operative Bank	3	View
UBI Banca	4	View
UBS	3	View
Ulster Bank (Nothern Ireland)	2	View
Ulster Bank (Rest of Ireland)	2	View
Unicredit	-	View

Open Banking FAQ

What is Open Banking?

Open Banking is a system that allows third-party financial service providers to access consumer banking data through APIs, with customer consent. Regulated by PSD2 in Europe and similar frameworks globally, Open Banking enables services like account aggregation, payment initiation, and financial comparison tools. It promotes competition and innovation in financial services.

What is an API aggregator?

An API aggregator (also called open banking platform or data aggregator) is a company that provides unified access to multiple banks' APIs through a single integration. Instead of connecting to hundreds of banks individually, developers integrate once with an aggregator like Plaid, Tink, or TrueLayer to access thousands of financial institutions. This simplifies building financial apps.

What are financial aggregators?

Financial aggregators are companies that provide unified access to multiple banks and financial institutions through a single integration. Also known as API aggregators or banking data aggregators, they let developers and apps connect to hundreds or thousands of banks without building separate integrations. Examples include Plaid, TrueLayer, Tink, Yodlee, and MX. Financial aggregators power account linking, transaction history, balance checks, and payment initiation in fintech apps.

What is PSD2?

PSD2 (Payment Services Directive 2) is an EU regulation that requires banks to provide API access to authorized third parties. Implemented in 2019, PSD2 created the legal framework for Open Banking in Europe. It introduced two new types of regulated providers: AISPs (Account Information Service Providers) for data access and PISPs (Payment Initiation Service Providers) for payments.