Nederland Postcode API is an address-data service for applications, forms and online shops working with Dutch addresses. Its main lookup takes a postcode and house number and returns structured address information, such as street, city, municipality, province and coordinates. The homepage includes an interactive example and a JSON response so developers can inspect the sort of data an integration can receive before building around it.
The service states that its address data is based on the Dutch BAG address-and-building register and CBS information, with monthly updates. It also describes neighborhood and district enrichment, energy-label lookups and downloadable database options. Developers can integrate the API directly using documentation and examples, or use ready-made plugins offered through a partner. The homepage lists routes for systems including WooCommerce, Magento and Contact Form 7, making the service relevant to both custom software and existing checkout or form workflows.
The practical aim is to reduce manual address entry and avoid maintaining a large local address dataset. The site offers a testing route and annual subscriptions, with one subscription described as covering multiple websites or projects. Teams should inspect current quotas, licensing, endpoint coverage and terms before choosing a plan. An address match can help normalize an entry, but it does not prove that a named person lives there or that a delivery can be completed. Nederland Postcode API is a data and validation component that still needs sensible handling of missing matches, house-number additions and user corrections.
