Nationwide Building Society API
🇬🇧 United Kingdom
Independent reference page. BankSnipe is not Nationwide Building Society and is not affiliated with or endorsed by it. We don't collect logins, passwords or account details. The URLs below are listed as plain text (not clickable) — copy and paste them into your browser to reach Nationwide Building Society's official domains.
Nationwide Building Society exposes an open banking API built on the UK Open Banking standard, covering account information (AIS), payment initiation (PIS) and confirmation of funds (CBPII). We have not recorded any premium APIs beyond the regulated UK Open Banking baseline.
Access uses OAuth 2.0 with redirect SCA, over a REST interface. A self-service sandbox lets you build and test before you apply for production access.
The API serves the United Kingdom. BankSnipe rates Nationwide Building Society's API maturity 4/5 (Established), last reviewed 15 Jun 2026.
Overview
- API standard
- UK Open Banking
- API style
- REST
- Authentication
- OAuth 2.0 · SCA: redirect
- Sandbox
- Available (self-service)
- Last reviewed
- 15 Jun 2026 · 2 months ago
Products
Maturity signals
- Account info (AIS)
- Payment initiation (PIS)
- Confirmation of funds (CBPII)
- Premium / beyond-PSD2 APIs
Links
- Website
- https://www.nationwide.co.uk
- Developer portal
- https://developer.nationwide.co.uk
- Documentation
- https://developer.nationwide.co.uk/open-banking
Notes
The UK's largest building society implements the UK Open Banking standard — AIS, PIS and Confirmation of Funds at v4.0 — with a self-service sandbox, plus Variable Recurring Payments and Open Data APIs.
Nationwide Building Society API: frequently asked questions
Does Nationwide Building Society have a public API?
Yes. Nationwide Building Society publishes regulated PSD2 open banking APIs covering account information (AIS), payment initiation (PIS) and confirmation of funds (CBPII). Registration and documentation live on its developer portal at https://developer.nationwide.co.uk.
Does Nationwide Building Society offer an API sandbox?
Yes. The sandbox is self-service, so you can sign up and start calling it without a commercial agreement in place.
Which open banking standard does the Nationwide Building Society API use?
UK Open Banking: the API standard mandated for UK banks. Two banks on the same standard can still differ in the details, so read the bank's own documentation before you build.
How do you authenticate with the Nationwide Building Society API?
OAuth 2.0, with redirect SCA for the customer consent step. Production access to the regulated endpoints also means registering as a licensed third-party provider with the bank.
Does Nationwide Building Society offer premium APIs beyond PSD2?
Not that we have recorded. Nationwide Building Society's listing covers the regulated UK Open Banking baseline only.
Which countries does the Nationwide Building Society API cover?
the United Kingdom.
Is the Nationwide Building Society API free to use?
Banks generally do not charge licensed third-party providers for the regulated open banking endpoints, which is the point of the mandate. Premium APIs above that baseline are commercial products priced by the bank. BankSnipe does not track pricing, so confirm it with the bank.
How mature is the Nationwide Building Society API?
BankSnipe scores it 4 out of 5 (Established). The score counts how many of the four product signals are live: AIS, PIS, CBPII and premium APIs beyond the regulated UK Open Banking baseline.