Sparkasse Bottrop API Access & Open Banking Data

Sparkasse Bottrop serves the Ruhr city of Bottrop and its surrounding communities in North Rhine-Westphalia. If you want a clean, ongoing view of your Sparkasse Bottrop balances and transactions — whether for bookkeeping, a personal budget, or a finance app you're building — open-banking.io links your accounts under Europe's PSD2 rules and keeps the data readable only by you. It covers 2,600+ banks across the EU and UK, needs no eIDAS certificate, and costs around EUR 3/month.

Sparkasse Bottrop is reachable by BIC WELADED1BOT, supports both business and personal accounts, and grants access consent for up to 180 days before you renew it.

How to connect Sparkasse Bottrop

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 later unlock the data.
2. In the dashboard, search for Sparkasse Bottrop and choose the account type you need — business or personal.
3. You're redirected to Sparkasse Bottrop's own secure login, where you approve access on the bank's official PSD2 consent screen.
4. Once approved, your accounts and transactions sync back into your open-banking.io dashboard and refresh automatically for the life of the consent.

Access your data

Reading the data programmatically is an optional step that comes after the account is connected. 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. Every request carries the X-Api-Key header, and each response is decrypted locally with your own key. The CLI and SDK only read and sync connections that already exist; they never create one.

Because open-banking.io is zero-knowledge, its servers hold only your public key and can never read or decrypt your Sparkasse Bottrop data. An API key on its own returns ciphertext — without your private key it stays unreadable.

Do I need a certificate or developer account with the bank?

No. open-banking.io is certificate-free; you approve access directly on Sparkasse Bottrop's consent screen.

Can I connect both business and personal accounts?

Yes. Sparkasse Bottrop supports both, and you can add each account type separately in the dashboard.

How often do I renew access?

Sparkasse Bottrop consent lasts up to 180 days, after which you re-approve access from the dashboard.

Start at https://open-banking.io.