How to connect Nationwide
About Nationwide
Nationwide is a bank operating in the UK. With Zenith you connect your Nationwide account over regulated open banking (PSD2) — read-only — and stream transactions to Google Sheets, your app, or Claude, reconciled in GBP.
Supported account types
Connection specifics
TransactionId changing between a 'pending' and 'booked' state is expected behaviour.
- BIC/SWIFT
- NAIAGB21
- Transaction history
- 449 days
Maximum number of days Zenith can access transactions from the moment of connection onward.
How to connect Nationwide
Connecting your Nationwide account to Zenith takes a few minutes, over a secure read-only connection.
- Step 1
Create account
Create a Zenith account and start the bank connection.
- Step 2
Select bank
Select Nationwide from the list of banks.
- Step 3
Confirm connection
Confirm the secure read-only connection in your bank's online or mobile banking.
- Step 4
Choose destination
Choose your data destination: Google Sheets, Claude (MCP), API or CSV.
- Step 5
Data starts flowing
Your Nationwide transactions start arriving in Zenith automatically.
Where you can send data
Google Sheets
Fresh transactions straight into a spreadsheet.
Claude (MCP)
Chat with your financial data.
API
Clean JSON for your app.
CSV
Export for accounting and archive.
Security & privacy
Read-only — we never move money.
PSD2 regulated open banking.
Credentials stay with your bank.