Dataset - Helsinki Region Infoshare

Address API of Uusimaa

You can use the address interface of Uusimaa to search for official addresses and their coordinates for the entire Uusimaa region. The interface provides the coordinates, postal...
- JSON
- XML
News on Helsinki’s hel.fi website

News on the City of Helsinki’s hel.fi website are available as open data via a RSS feed. The Helsinki City Executive Office’s Communications is responsible for the contents on...
- XML
Helsinki Metropolitan Area service register REST API

Helsinki Metropolitan Area (Helsinki, Espoo, Vantaa and Kauniainen) service register REST API. The interface offers possibilities to make queries and use the data in the...
- XML
- JSON
The Issue Reporting API of the City of Helsinki

NOTE: The API is currently not in use due to renewal of the information system. The renewed API is scheduled to be published in 2024. An API to the City of Helsinki digital...
- XML
- JSON
Open decision API of Helsinki

Note (12/2023): OpenAhjo is not in production, so the up-to-dateness or availability of its data cannot be guaranteed. You can search for public decision data for the City of...
- XML
- JSON

You can also access this registry using the API (see API docs).