Connect DNB to Claude
Synci connects DNB and gives Claude read-only access to the accounts you select. Ask about balances and transactions already synced to Synci, without sharing your bank login or allowing the assistant to move money.
By Synci · Last verified
Before connecting DNB
A spending comparison needs complete periods. Check DNB’s initial history below before asking Claude for a long-term trend. DNB’s PSD2 account-information documentation also excludes some products, including Aksjesparekonto and DNB Mastercard.
| Connection detail | Current Synci institution data |
|---|---|
| Availability | Available |
| Upstream provider | GoCardless |
| Pending transactions | Exposed by this bank connection |
| Credit-card accounts | Not confirmed for this connection |
| Initial history | Up to 395 days; actual returned history can be shorter |
| Consent renewal | Up to 179 days before bank authorization is required again |
Set up DNB with Claude
Connect DNB in Synci
Select the correct institution and complete DNB’s bank authorization flow. Return to Synci and check which accounts and transactions are available.
Choose what Claude sees
Share the accounts you want Claude to reason about. The rest stay invisible.
Add the connector
In Claude's settings, add a custom connector and paste https://api.synci.io/mcp, then sign in to Synci and approve access.
Ask a question with a clear scope
Compare two complete months of booked DNB transactions, explain which merchants account for the change, and show the date range actually available.
What Claude can read
The permitted DNB accounts, their synced balances, and available transactions in a requested date range. It cannot initiate payments, change an account, or see accounts outside your grant. Bank-data access does not imply that the bank exposes its entire product portfolio.
Synci omits sensitive account identifiers from assistant-facing responses. You can revoke assistant access in Synci. The assistant service receives the financial records it reads, so review the accounts you share.
Refresh behavior and history limits
Claude reads data already synced to Synci. Your Synci plan, connection settings, and DNB’s own request limits determine how fresh it is; asking another question does not force a live bank refresh.
Use the initial-history limit above to choose meaningful analysis periods. An assistant cannot recover history the bank has not supplied. Ask it to show the timestamps, date range, and individual transactions behind a total.
Questions and answers
- Can Claude compare a full year of my DNB spending?
- A spending comparison needs complete periods. Check DNB’s initial history below before asking Claude for a long-term trend. DNB’s PSD2 account-information documentation also excludes some products, including Aksjesparekonto and DNB Mastercard.
- Is my DNB login shared with Claude?
- No. Complete the bank authorization outside the chat, then authorize the assistant through Synci. Claude reads the permitted data from Synci and does not receive your bank login.
- Can Claude make payments from these accounts?
- No. Synci’s MCP access is read-only and has no payment or account-changing operations.
- What happens when the bank connection expires?
- Renew the bank authorization in Synci when requested. Until a connection refreshes successfully, the assistant may only have older data available. Check connection status and balance timestamps.
Sources and verification
Checked on 23 September 2026. Provider details can change; follow the linked documentation for current setup requirements. This guide is published by Synci.
Put your bank data to use.
Check your bank, connect the accounts you need, and choose where to use them.