Creditscore API
No more payment failures
Customers who don't pay are extremely frustrating and costly. Avoid payment defaults by checking creditworthiness before offering payment methods like SEPA direct debit, invoice, or installment plans. With the Creditscore API, you can assess the likelihood of payment default in real time and adjust your payment options accordingly.
How does that work?
You provide the customer's address and ideally their date of birth, along with the purpose of the credit check (e.g., purchase agreement), and receive a real-time credit score as a number between 1 and 1000.
Want to see the data quality for yourself? Contact us now and receive free credit checks.
Pricing
Take advantage of our clear and fair pricing model.:
- Private customer check Germany: €0.75 per request (plus VAT)
- No setup fee
- No minimum volume – pay as you go
Get started right away:
Integration & Plugins
You can use the Creditscore API
- via JSON HTTP-API
- or via the user interface
.
A sample request would look like this.
curl -X POST https://creditscore.eu-west-1.wunderkopfservices.de/v1/person_score_de \
-H 'Authorization: Bearer $your_base64_encoded_access_token' \
-H 'Content-Type: application/json' \
-H 'x-organization-id: $your_organization_id' \
-H 'Accept: application/json' \
-d '{
"customer_reference_id": "123",
"purpose": "sale",
"birthday": "1980-11-04",
"address": {
"firstname": "Max",
"surname": "Mustermann",
"street": "Musterstraße",
"streetnr": "30",
"postcode": "22869",
"city": "Schenefeld"
}
}'
We offer client libraries for various programming languages as well as plugins for third-party systems to make integration easier. In addition, we provide a testing environment so you can easily test your own integrations. If you need support during the integration process, we’re here to help you every step of the way.
Why should I offer high-risk payment methods myself?
“PayPal, Klarna & Co. already offer direct debit and invoice purchases – so why should I bother handling it myself?”
Cost Savings
Payment service providers charge high fees for every transaction. Current standard rates are:
- PayPal: 2.49% + €0.35 per transaction
- Klarna: 2.99% + €0.35 per transaction
Here’s what that means in practice:
- 15,07 € order via PayPal = 0,75 € fee
- 13,38 € order via Klarna = 0,75 € fee
- 300,00 order via PayPal = 7,82 € fee
- 300,00 order via Klarna = 9,32 € fee
For a yearly revenue of 5 million € and an average order value of 60 € (approx. 83,333 orders), the total fees are:
- 153.666,55 € in PayPal fees
- 178.666,55 € in Klarna fees
By handling even part of these transactions yourself, you unlock significant savings potential.
Independence
PayPal, in particular, can pose a major risk for merchants:
- Accounts can be frozen without warning
- Funds withheld for months
- Fee increases without prior notice
- Disputes often automatically decided in favor of the buyer using opaque AI systems
While many customers prefer PayPal – and you’ll likely still want to offer it – we strongly recommend diversifying risk and not relying entirely on a single payment service provider.