Open APIs

Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä!

• 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

• 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

• The Issue Reporting API of the City of Helsinki

  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...

  • XML
  • JSON

• Database of addresses of Helsinki

  The database of addresses of Helsinki maintains information about the addresses and place names of properties and plan units located in the area of Helsinki. The street names...

  • WMS
  • WFS

• Stara Snowplow API

  Note (10/2024): Due to updates, the API is currently not operational. In 2012, the City of Helsinki’s construction service Stara introduced an electronic production control...

  • XML

• 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

• 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

• 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

• Traffic data from Helsinki

  Traffic data from Helsinki contains data about motor traffic: traffic volume, speed, amounts of different types of vehicles). The data consists of three different datasets in...

  • JSON
  • CSV
  • WMS
  • WFS

• 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 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
  • GEOPACKAGE
  • SHP
  • TAB

• Helsinki environmental statistics

  Helsinki Environmental Statistics is an online statistics service collecting the essential variables describing the state of the environment and burdens on the environment in...

  • PXWEB
  • JSON

• HSL Journey Planner API

  The Journey Planner) APIs offer data regarding routing, geocoding, map data and vehicle locations through several APIs. Routing API: Itinerary- and timetable-queries via either...

  • XML

• 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

• 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