Technology & Public Service Innovation:
Open Data

One of DoITT’s goals is to facilitate a more transparent and open government to increase civic engagement. Through New York City’s open data policy – a citywide set of standards and guidelines – DoITT is presenting critical City information on NYC OpenData and ensuring that New York City government is increasingly accountable and open for future generations.

Beyond presenting information to the public, these data sets serve as a rich resource for developers, civic groups, and anyone else to build applications on their own. In addition to providing data, the City supplies APIs (application programming interface) through its Developer Portal enabling the City to foster innovation and leverage talents beyond City government to create solutions to tough problems.

The City’s open data policy ensures ongoing access to public 
data according to the following timeline:

  • The City delivered qualifying agency data already publicly available on by March, 2013.
  • The City published a data release plan and an interactive progress dashboard, which includes agency release dates, in September, 2013.
  • These plans will be updated each year and will together serve as a roadmap for agencies to post their datasets to a single Web portal by 2018.

NYC Open Data Portal

Over 1,300 datasets are available for free, via the NYC Open Data portal on  Today NYC Open Data represents datasets from nearly 60 City agencies, including public safety data, buildings complaints, restaurant inspections and real-time traffic numbers. This website is a core component of the City's open data efforts, representing a revolutionary approach to storing and publishing City data in a searchable, sortable and customer-friendly manner.

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NYC Developer Portal

The NYC Developer Portal is a one stop destination for NYC specific APIs, apps and datasets. The Developer Portal enables the development of consumer grade apps using NYC data sets and APIs. The NYC Developer Portal was established to be a central hub for engagement with the developer community in these ways:

  • It provides a framework featuring APIs for City data that developers can use to create apps to improve the lives of New Yorkers and the way in which City government serves them.
  • It is an official New York City Apps Hub, showcasing both apps developed by the City and apps developed independently that use City data and that have been reviewed and approved by the City as official offerings on the Apps Showcase.
  • It is a forum for developers to interact with the City about its public data, suggest ways to improve how the City presents its data, and also find collaborators for their own civic projects.
Visit the Developer portal to view New York City apps and APIs

NYC Big Apps Competition

In the summer of 2009, DoITT and the NYC Economic Development Corporation established the NYC BigApps Competition. This annual competition utilizes NYC Open Data and challenges local entrepreneurs and developers to create new and unique tools for public use. The program has resulted in hundreds of new applications developed by the public, for the public, at essentially no cost to taxpayers.

View apps developed in the Big Apps competition on the NYC Developer portal

311 Open API

Open 311 is a national program based in New York City that supports  open standards around data exchange between 311 systems and non-government web and mobile applications. The City of New York is working with Open311 and other cities across the country to develop interoperable systems that will allow citizens to better accessand develop applications using inquiry, service request and other data from 311 systems.

The City of New York released a content-inquiry application programming interface (API) through the NYC Developer Portal as part of Open311's efforts. The inquiry API supports content for services, facilities and an RSS feed of daily information.

Access the Open311 Inquiry API on the NYC Developer Portal

Multi-City Data Sharing:

The City of New York is working with large jurisdictions across the country and the Federal Government to aggregate and share data. The sharing of municipal data enables data-driven decision making and analysis in a way never possible before. is a new one-stop destination for searchable, sortable, and downloadable data. The website currently includes datasets from New York, Chicago, Seattle, San Francisco and the Federal Government. The unified data portal also provides links to download apps, details on civic challenges, and open data policies. This initiative promotes transparency in government while providing developers and the public with the tools to build innovative applications and platforms for their communities.