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the future of finance
The most comprehensive API catalog in the Netherlands

Holland Webservices

The API platform for financial service providers

Accelerate your growth

Data is the fuel for Fintech companies. Processing more data more efficiently requires a next gear, but developing everything yourself often acts as a brake. With our APIs and Feeds you can quickly leave those challenges behind and proceed full throttle.

Cloud ready

Our APIs are fast, simple and secure. They are available in the cloud, for any platform and are easy to integrate with your systems. We make sure it works, so you can focus on growing your business. This ensures a faster time-to-market.

Instant results

Always the correct information and result of calculations. Real time and on demand. Through our smart APIs and Feeds, users experience your systems as extremely reliable. Both within your website, in an app, and within a SaaS or Enterprise project.

Web Services & APIs

With what can we help you?

Maximum mortgage

Calculate Net Expenses

Calculate monthly spendings

Calculate annuities

Year of construction

Postal code

Plot surface

Living space

Home value

Mortgage interest overview & rates

National Mortgage Guarantee (NHG)

HDN import


Some of our satisfied customers

quion logo
lloyds bank logo
Hypotheekrente logo
nationale-nederlanden logo
Rothesay logo
ASR Nederland logo
achmea logo
DCMB credit logo
Easymortage logo
Faster forward logo

Want to tune in? Or a demo?

We are happy to call you

Ready-to-use web tools

Without customization

Sometimes no customization is required for a certain calculation. In that case you can use our standard web tools. You can easily include these within your website via an iFrame, using the accent colors of your organization. Some generate a PDF report with your logo, optionally available for download after providing contact details.


Contact details

Looking for a solution and curious about the possibilities? Fill in your details and we will contact you without any obligation.

Holland Webservices
Diemermere 1
1112 TA Diemen

020 - 758 2111


What do you want to know?