Sparkasse Bühl API Access & Open Banking | open-banking.io

Reaching your Sparkasse Bühl account data no longer means wrestling with eIDAS certificates or a PSD2 sandbox. open-banking.io gives you a single, zero-knowledge gateway to Sparkasse Bühl (BIC SOLADES1BHL) that works for both business and personal accounts. You approve access once, your accounts stream into your dashboard, and every figure is decrypted on your own device with a key only you hold.

The service covers 2,600+ EU and UK banks, so Sparkasse Bühl can sit alongside the rest of your accounts under one login — no per-bank onboarding, no certificate paperwork.

How to connect Sparkasse Bühl

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

  1. Sign up at open-banking.io and set your encryption passphrase. Your keys are generated locally on your device, so no one else — not even open-banking.io — can read your data.
  2. In the dashboard, search for Sparkasse Bühl and choose the account type you need, business or personal.
  3. You are redirected to Sparkasse Bühl's own secure login, where you approve access under PSD2 consent. Your credentials only ever touch the bank.
  4. Your accounts and transactions sync back into your dashboard. Consent lasts up to 180 days, after which you simply re-approve on the bank's screen.

Access your data

Once Sparkasse Bühl is connected, developers can optionally read the data programmatically. On the Developers page, create an API key and export a credentials.json — this bundles the API key together 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 own key. Note there is no connect command — the tooling only reads and syncs connections you already approved in the dashboard.

Because the platform is zero-knowledge, its servers hold only your public key. An API key alone returns ciphertext; without your private key the data stays unreadable. All this runs at roughly EUR 3/month.

FAQ

Does open-banking.io support Sparkasse Bühl business accounts?

Yes. Both business and personal Sparkasse Bühl accounts (BIC SOLADES1BHL) can be connected and synced.

Do I need an eIDAS certificate to access Sparkasse Bühl?

No. The service is certificate-free — you approve access directly on Sparkasse Bühl's own consent screen.

Up to 180 days per approval. When it expires, re-authorise in a few clicks on the bank's login page.

Ready to start? Connect Sparkasse Bühl at https://open-banking.io.