Sparkasse Mainfranken Würzburg Open Banking Access

Reading your Sparkasse Mainfranken Würzburg accounts programmatically usually means chasing eIDAS certificates and a PSD2 sandbox. open-banking.io skips all of that. It links to Sparkasse Mainfranken Würzburg (BIC BYLADEM1SWU) through the regulated PSD2 rails and hands you balances and transactions in a single, private dashboard — no certificate, no bank sandbox, no paperwork.

Both business and personal Sparkasse Mainfranken Würzburg accounts are supported, and each authorisation lasts up to 180 days before Sparkasse Mainfranken Würzburg asks you to renew consent.

How to connect Sparkasse Mainfranken Würzburg

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

  1. Sign up for open-banking.io and set your encryption passphrase. Your keys are generated locally on your own device, so only you can ever unlock your data.
  2. In the dashboard, choose Sparkasse Mainfranken Würzburg and pick the account type — business or personal.
  3. You are redirected to Sparkasse Mainfranken Würzburg's own secure login to approve access under PSD2. Your credentials are entered only on the bank's screen.
  4. Once you confirm consent, your Sparkasse Mainfranken Würzburg accounts sync straight into your dashboard.

That is the whole flow: no developer redirect, and you never hand your banking login to anyone but the bank.

Access your data

Want the numbers in your own code? After the account is connected, open the Developers page, create an API key, and export a credentials.json — it bundles the API key with your private decryption key. From there use the CLI (openbanking accounts, openbanking transactions, openbanking sync), an SDK, or the REST API. Requests authenticate with the X-Api-Key header, and every response is decrypted locally with your key. The CLI and SDK only read and sync connections you already made in the dashboard — there is no connect command.

Because open-banking.io is zero-knowledge, its servers hold only your public key. An API key on its own returns ciphertext; without your private key it stays unreadable. All of this runs at roughly EUR 3/month.

Is a bank certificate required?

No. open-banking.io is certificate-free — you never register an eIDAS certificate or manage a PSD2 sandbox for Sparkasse Mainfranken Würzburg.

Can open-banking.io read my transactions?

No. Data is decrypted only on your device with a key you alone hold; the service stores just your public key.

How long does access last?

Up to 180 days per consent, after which you re-approve on Sparkasse Mainfranken Würzburg's login screen.

Start now at open-banking.io.