Stadtsparkasse Wedel API Access & Open Banking Data

Pulling your own account data out of Stadtsparkasse Wedel usually means wrestling with certificates, eIDAS licensing and PSD2 paperwork built for corporations. open-banking.io removes all of that. It gives you a single dashboard that speaks to Stadtsparkasse Wedel (BIC NOLADE21WED) on your behalf, syncs your balances and transactions, and keeps everything readable only by you. No developer onboarding, no bank sales call, no certificate authority.

Both business and personal Stadtsparkasse Wedel accounts are supported, and a single consent stays valid for up to 180 days before Stadtsparkasse Wedel asks you to re-approve — the maximum the bank permits under PSD2.

How to connect Stadtsparkasse Wedel

Connecting happens entirely inside the open-banking.io dashboard — there is no code, endpoint or key involved in this step.

  1. Sign up for open-banking.io and set an encryption passphrase. Your keys are generated locally on your own device, so nobody else — including open-banking.io — ever holds them.
  2. In the dashboard, search for Stadtsparkasse Wedel and choose whether you're linking a business or personal account.
  3. You're redirected to Stadtsparkasse Wedel's own secure login, where you approve access directly on the bank's PSD2 consent screen.
  4. Your accounts flow back into the dashboard and begin syncing automatically.

That's the whole flow. You authenticate with Stadtsparkasse Wedel, not with a third party holding your credentials.

Access your data

Once a connection exists, developers can optionally read it programmatically. From the Developers page, create an API key and export a credentials.json — this bundles the API key with your private decryption key. From there:

  • Use the CLI: openbanking accounts, openbanking transactions, openbanking sync.
  • Or call the REST API / SDK with the X-Api-Key header.

Every response arrives encrypted and is decrypted locally with your own key. The API key alone only ever returns ciphertext — proof that open-banking.io is genuinely zero-knowledge, storing only your public key. The CLI and SDK read and sync existing connections; they never create one.

All of this runs for roughly EUR 3/month, certificate-free.

Is my Stadtsparkasse Wedel login shared with open-banking.io?

No. You enter your credentials only on Stadtsparkasse Wedel's own login page during the consent step.

Can open-banking.io read my transactions?

No. Data is decrypted on your device with a key only you hold; the servers see only encrypted blobs.

How long does access last?

Up to 180 days per consent, after which Stadtsparkasse Wedel prompts you to re-approve.

Start at open-banking.io.