Datasets

The Sinetti archive information system operated by the City of Helsinki Archives provides collection data from archived documents of the City of Helsinki. The document collections mostly comprise permanently retained,...

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 code and municipality name for the...

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 the site. You can edit the content of the...

An API for making resource reservations, such as booking a practice room or a meeting space. API location: https://api.hel.fi/respa/v1/ Reservation booking system or Respa is a prototype service that aims to provide...

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 Helsinki, Espoo, Vantaa and Kauniainen Service...

Interface (API) to the City of Helsinki feedback system. Feedback from all City departments is published through the API, and can be used for example by businesses and other actors. Currently (2025), only less than...

The dataset includes the metadata of all open data found in the Helsinki Region Infoshare (HRI) online service for open data. The metadata can be read through the CKAN data catalogue interface. Through the interface,...

The Service Map developed by the City of Helsinki shows the locations and services offered by the cities of the Helsinki Metropolitan Area, as well as Vantaa and Kerava and Western Uusimaa Wellbeing areas. The map...

Helsinki Channel’s (helsinkikanava.fi) videos and metadata are available through an open programming interface. The Helsinki Channel provides webcasts and publishes recordings of meetings of the Helsinki City...