We provide a number of public APIs that expose the data in our services to developers who want to re-use it.
The Comprehensive Knowledge Archive Network (CKAN) stores metadata and data for datasets. Various deployments exist, but an API is available for all of them.
OpenSpending.org is a datamart for government financial data. It stores budgets and transactional expenditure and offers search, export and aggregation APIs.
PyBossa is a crowd-sourcing platform where users can help to complete tasks, such as image analysis or text transcription. The application can be completely controlled via it's API.
The activity API collects data about project-related activties on various collaborative platforms, including GitHub, Twitter and Mailing List feeds.
Nomenklatura is a very simplistic data linking tool. It maintains authoritative lists of names (e.g. politicians, companies, streets) and offers an API and web-based interactive recon tool to match variant spellings of these names to the canonical form.