One address data platform. Multiple ways to integrate.

Pro6PP combines address validation and postal code APIs with downloadable databases and integrations for webshops, CRM, logistics, and your own systems.

  • APIsLookup, autocomplete, validation and location data
  • DatabasesUpdated data for offline use
  • IntegrationsWebshop plugins, SDKs and custom systems

Try the Infer API

Type a partial or complete address to see ranked suggestions and a structured result.

Structured result

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Pick a suggestion from the ranked list to inspect the structured response.

Accurate Address Validation - Seamless Integration & European Coverage

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Fast, Reliable & Cost-Effective Address Validation

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

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Coverage for multiple Countries

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

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Download Postal Code Databases for Offline Use

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

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Seamless Integration for Enhanced Customer Experience

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

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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.

What's planned for future releases?

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