Klarna Bank Integrations: Connect Your Account [2026]

ABN Amro

Banca MPS (Monte dei Paschi di Siena)

Connect guide →

Banca Nazionale del Lavoro

Crédit Agricole Italia

NATIONWIDE BUILDING SOCIETY

RBS (Royal Bank of Scotland)

The Co-Operative Bank

Ulster Bank (Nothern Ireland)

Connect guide →

Ulster Bank (Rest of Ireland)

Connect guide →

Unicredit

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Bank Not Listed?

Klarna supports 63+ banks. Browse our full provider directory.

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What is Klarna?

Klarna is a banking API aggregator: one integration model so apps can reach many institutions with user consent. We list about 63 institutions in this directory; your app’s real coverage can still differ by product and market. For a simple mental model, Klarna is like a power strip for financial data: many banks share one interface, and your product plugs in once.

Klarna FAQ

What is Klarna?

Klarna is an open banking API aggregator headquartered in SE. It provides account information (AIS), payment initiation (PIS) through a single integration, so apps can reach many banks with the customer's consent instead of building one connection per bank.

How many banks does Klarna support?

Open Banking Tracker lists 63 institutions reachable through Klarna. Real coverage can differ by product, market, and individual bank, so use the supported-banks table on this page and confirm specific institutions in Klarna's own documentation.

Is Klarna regulated?

Yes. Operated under Klarna Bank AB (publ), a licensed Swedish bank; UK AISP/PISP via FCA. Authorisations held: PSD2. Verify current licensing on the relevant regulator's public register before you rely on it.

Does Klarna support payments (pay by bank)?

Yes. Klarna offers payment initiation (PIS), so you can move money account-to-account ("pay by bank") with the payer's authorisation. Product names and market availability vary — confirm in Klarna's documentation.

Is Klarna free to use, and is there a sandbox?

Klarna pricing is sales-gated (you contact sales for rates): Sales-gated / partner portal. A free developer sandbox is available to test before you commit.