Open APIs

Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä!

• Materials of Helsinki City Archives

  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...

  • JSON

• 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

• Resource reservation system for City of Espoo

  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...

  • JSON

• Resource reservation system for City of Helsinki

  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...

  • JSON

• 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

• 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

• Metadata of HRI datasets

  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...

  • JSON

• Telephone numbers for City of Helsinki departments

  The numerot.hel.fi service provides an Internet interface for browsing and searching for telephone numbers of the City of Helsinki’s departments and municipal enterprises. The...

  • XML

• Helsinki metropolitan area Service Map APIs

  The Service Map is an open information channel on the service points and services offered by the cities of Helsinki, Espoo, Vantaa and Kauniainen. The Service Map helps the...

  • JSON
  • WFS

• Helsinki Channel open data

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

  • JSON