OS NGD Address API
viaEuropa provides access to the OS NGD Address theme as a high-performance, reliable and secure Application Programming Interface (API).
Our OS NGD Address API allows software to retrieve data using a well-defined, consistent and programmatic method for performing queries. Organisations of all sizes and industries can use APIs to transform and streamline their business processes.
The API uses an industry-standard REST interface with flexible query options and responses in JSON, GeoJSON or XML formats. The API allows you to query the NGD Address theme by UPRN, postcode, free text address or geographic coordinates (point+radius or bounding box).