Address interface of Uusimaa

The address interface of Uusimaa allows you to search for official addresses and their coordinate points throughout the entire Uusimaa region. The interface gives the address coordinates, postal code, the name of the municipality and the street address in Swedish and the municipality, if available. The interface provides the data in JSON or XML format. You can also search through the interface based on distance, bounding box or coordinates. The coordinate system used is WGS84 (EPSG: 4326). The interface is available in accordance with the OpenAPI specification [documentation](https://paikkatietohaku.api.hel.fi/schema/docs/). The data obtained through the interface is based on the Finnish Transport Agency’s [Digiroad service material](https://vayla.fi/vaylista/aineistot/digiroad). ##API key To use the interface requires an API key. The API key can be ordered from [email protected]