CKAN API: Open Data In The Hands of The Masses

An independent, open source platform aimed at making it easier for governments and businesses to publish open data has released a new version of their API. The CKAN API allows access to catalog listings of open datasets, full-text searches, and sharing of statistics on open data usage. While several governments are releasing their data via APIs, the global not-for-profit agency Open Knowledge Foundation is encouraging data publishers to consider using the Comprehensive Knowledge Archive Network (CKAN) platform. CKAN provides a sleek design interface that can be branded with any business or government’s livery to create an easy-to-use access point into a company, city, state, or nation’s open data catalog. Most recently, the US Government has upgraded its data catalog at data.gov to make use of the new CKAN 2.0 platform.  To coincide with the recent version upgrade of CKAN, the Open Knowledge Foundation has released the new CKAN API (version 3), which represents a complete overhaul of the API.  The CKAN API is RESTful with responses in JSON. Extensive documentation is available, alongside developer forums and mailing lists.  The CKAN API provides access to the suite of stored open data within a CKAN platform, as well as catalog listings on the datasets, full-text searches, and stats on dataset usage. So, for example, it is possible to query the entire data.gov catalog using the CKAN API. The API is also available as an RSS/ATOM feed detailing recent activity and additions to the CKAN stored data. The whole catalog can also be downloaded as CSV or JSON files.  While the publicly available API is a read API, authorized use can be created for open data owners to allow for writing and updating of datasets and metadata directly to a CKAN platform."