The city of Stockholm says it has launched one of the biggest competitions in open data in Europe.
The Open Stockholm Award, will see participants "develop innovations for a smarter Stockholm", said the organisers. Over 100 open data sources are available to use in the competition.
"Environmental and information technology are both key priorities in developing a sustainable society", the organisers said. "The competition invites not only Swedes, but also people from all over the world to take part".
Stockholm is one of the fastest growing regions in Europe. By 2022 Stockholm city is expected to reach 1 million inhabitants, in a region of 3.5 million people. Since 2011, the city of Stockholm has worked to open up all the data that is generated from the services its citizens use.
So far, 255 contenders have registered for participation in the competition, and the number of international participants is 73 percent.
The participants can compete with innovations in the form of apps, web services or project plans in three different categories. These include "Best solution for traffic and accessibility", "Best solution for the environment and sustainability", and the "Best smart solution for the citizens of Stockholm".
The winners of the three categories will share 100,000 SEK (£9,000). The competition is open for registration for another three weeks.