Open APIs

Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä!

• Helsinki metropolitan postal code areas

  The postal code areas of Helsinki metropolitan area has been produced at HSY together with the cities of Helsinki, Espoo and Vantaa. The data contains precise area boundaries...

  • WFS
  • WMS
  • SHP
  • TAB
  • XLSX
  • KML

• Helsinki Region Transport (HSL) customer satisfaction survey

  Asty Web is Helsinki Region Transport's internet database, which provides research information on passenger satisfaction in public transportation. It is possible to make custom...

  • CSV

• Helsinki region statistics API

  The regional statistics interface enables the computerised retrieval of statistical data in Greater Helsinki’s Aluesarjat (in Finnish) statistical database in different file...

  • JSON
  • PXWEB

• 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

• Espoo.fi-web service open API

  Note! Espoo.fi website's old APIs was removed from use starting 1.9.2021. New API will be documented in 2022. Meanwhile, events in Espoo can be queried through Linked Events...

  • XML
  • JSON

• Helsinki metropolitan area Address Catalogue

  The regional address catalogue contains information about the addresses and place names of properties and plan units located in the area (so-called zero address). The...

  • WMS
  • WFS

• Buildings in Espoo

  This dataset provides information on buildings as polygons in Espoo. Weekly updating, position-accurate buildings are available in the WMS and WFS interfaces. In the data...

  • WMS
  • WFS

• Geoenergy map of Espoo

  The geoenergy map portrays the suitability of soil and bedrock for geoenergy production. The map is based on soil maps of the City of Espoo, soil and bedrock data of the...

  • WMS
  • GEOTIFF

• Population grid of Helsinki metropolitan area

  The population grid contains grid-based data on the population total, age distribution and occupancy rate of the Helsinki metropolitan area. The material covers the years...

  • WFS
  • WMS
  • SHP
  • TAB
  • KML

• Lot reserve in the Helsinki Metropolitan Area (SeutuRAMAVA)

  SeutuRAMAVA contains data on lot reserve based on the reserve of legally valid city plans in the Helsinki metropolitan area. The data has been calculated for the data by...

  • WFS
  • SHP
  • TAB
  • KML
  • XLSX
  • CSV

• Building information grid of the Helsinki metropolitan area

  The building information grid contains grid-based data on the number, floor area and purpose of use of buildings as well as area density in the Helsinki metropolitan area. Data...

  • WFS
  • WMS
  • SHP
  • TAB
  • KML

• 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

• Helsinki region map

  The regional map is general map dataset compiled from the data of the 14 municipalities in the Helsinki region. The map is divided into sections describing land use (built-up...

  • WMS
  • WFS
  • TAB

• 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

• HSL Journey Planner API

  The Journey Planner (reittiopas.fi) APIs offer data regarding routing, geocoding, map data and vehicle locations through several APIs. Routing API, Itinerary- and...

  • XML

• Helmet-libraries’ catalog

  Data from the HelMet libraries’ catalogue in a machine-readable format. The data source contains the descriptions of approximately 680,000 books, records, sheet music...

  • JSON