Open APIs

Löydä kaikki pääkaupunkiseudun avoimet rajapinnat täältä!

• Passenger numbers of Suomenlinna ferry

  Helsinki Region Transport's (HSL) LATI Web service is a ferry traffic statistics application commissioned by HSL. The system records the number of passengers, transported...

  • JSON

• 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

• Nordstat: statistics on largest Nordic cities

  The Nordstat database, implemented in cooperation between the Nordic countries, contains basic statistics as time series on the largest cities and urban regions in the Nordic...

  • PXWEB
  • JSON

• Helsinki: Health and welfare statistics for children and youth

  The welfare statistics database contains information on the well-being of children and young people in Helsinki. The statistics contain information on, for example, family...

  • PXWEB
  • JSON

• 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

• Rajapinta pääkaupunkiseudun kansalais- ja työväenopistojen kurssitietoihin

  Ilmonet.fi is a joint service of the adult education centres in the Helsinki Metropolitan Area (Helsinki Adult Education Centre, Helsingfors Arbis, Espoo Adult Education Centre,...

  • JSON
  • XML

• Energy consumption data of city of Helsinki’s utility and service properties

  Nuuka open API, which provides energy consumption information for the City of Helsinki’s service properties, is a channel through which the user can search for information about...

  • JSON

• HSL Beacon API

  HSL Beacon API can be used to fetch a list of Bluetooth beacons that have been installed to stops and vehicles in HSL area. Beacon data can be combined with data from journey...

  • JSON

• HSL OpenMaaS sales API

  HSL OpenMaaS is an open-for-all ticket sales interface for acquiring HSL mobile tickets. The goal is to have all HSL’s mobile ticket products available via this API. The...

  • JSON

• Parking spot usage API of Helsinki

  A real-time REST interface that provides information on the parking situation in Helsinki. The interface provides the number of parking spaces currently in operation in the...

  • JSON

• Helsinki and Tallinn nature trails

  Citynature.eu offers an open REST API interface that can be used to utilise the information about nature trails from both Helsinki and Tallinn available on the site. The...

  • JSON

• Pedestrian slip warnings in Helsinki

  The open REST interface provides information in JSON format on slip warnings given to pedestrians. In addition to Helsinki, the interface also provides information on warnings...

  • JSON

• 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

• School history database of Helsinki

  Koulurekisteri is the school history database operated by the Helsinki City Archives. It is the most comprehensive listing available of the history of all schools in the City of...

  • JSON

• Collections of Helsinki City Museum

  Helsinki City Museum has made more than 48,000 of its materials available under open licence through the Finna service, which contains material-specific descriptions. In Finna,...

  • JPEG
  • JSON

• Helsinki Zoo visitor count

  The data includes the daily number of visitors to Korkeasaari Zoo since the beginning of 2010. The data contains a breakdown of tickets for adults and children, family...

  • JSON
  • XLSX

• Linked Events Helsinki API

  You can use Helsinki’s Linked Events API to retrieve event data of several City of Helsinki divisions and the Helmet library service in a uniform format. The geographic data is...

  • JSON

• 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

• 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