Enhance Customer Experience with Address Validation & Postal Code API

Reduce Input Errors with Real-Time Address Autocomplete

Pro6PP offers a postcode API and up-to-date postcode databases for the Netherlands, Germany, Belgium, Luxembourg, France, and more, enabling accurate address validation and efficient address autocomplete solution.

Seamlessly improve the customer experience across webshops, CRM, and your own systems with our powerful, real-time address validation API.

Opt for offline accessibility by downloading our databases or benefit from real-time address data integration through our cloud-based address verification API.

Try our free live demo now!

Test our postcode lookup API: enter a postal code and house number to see how Pro6PP instantly provides the street name, city, region, country, and coordinates for seamless address validation.

Explore more Demos

Accurate Address Validation - Seamless Integration & Global Coverage

icon / fast

Fast, Reliable & Cost-Effective Address Validation

Enjoy monthly-refreshed, accurate address data for enhanced customer experience and to reduce delivery errors.

icon / globe

Coverage for multiple Countries

Currently serving countries like the Netherlands, Germany, France, Denmark, with continuous expansion.

icon / download

Download Postal Code Databases for Offline Use

Access our reliable postal code databases offline for uninterrupted address management.

icon / integration

Seamless Integration for Enhanced Customer Experience

Integrate our address verification API effortlessly with popular webshops for improved address validation, autocomplete, and fewer failed deliveries.

Trusted by

Bayer logo
KLM logo
Decathlon logo
Bain & Company logo
Intersport logo

Start your 2 month free trial now!

Sign up to access two months of free trial subscription.

Start now!

Packages

Choose the package that best suits your situation. View all packages here.

Webshops

Optimize your webshop with our specialized API integration. Connect the API to up to 5 webshops registered under the same KVK account for seamless address management.

Discover our exclusive plugins designed to enhance your Pro6PP experience. These plugins are available for individual purchase and require a subscription or demo account for activation. View the complete list of plugins here.

Frequently Asked Questions

Have more questions? Visit our support page for additional FAQs and contact options.

What is Pro6PP?

Pro6PP provides geographic information via an API (web service) and downloadable databases for offline use. For the Netherlands and neighboring countries. We are often used in web shops for address validation, finding a store near you or for calculating travel time and distance between addresses that transport companies find useful.

What is the motivation behind Pro6PP?

In 2008, 6PP was created as an open-source project. The number of users, including many companies, grew rapidly. With Pro6PP, d-centralize meets the demand for support and improvement of the 6PP database.

How recent is data?

Every 1st day of the month new data is published and new database downloads become available.

Pro6PP sounding board group

Your input is of great value. If you would like to contribute your thoughts, please fill out this form so that we can address your wishes and ideas during the focus group.

You may submit the wish form at any time. We will indicate in due time which feedback session will include your input (sounding board group date and time). Sessions are digital so that everyone has the opportunity to participate.

Download PDF formDownload ODT form

What's planned for future releases?

You can check out our roadmap to see what features we are planning.