Provides R access to the COVIDcast Epidata API published by the Delphi group at Carnegie Mellon University. This API provides daily access to a range of COVID-related signals Delphi that builds and maintains, from sources like symptom surveys and medical claims data, and also standard signals that we simply mirror, like confirmed cases and deaths.

Consult the COVIDcast Epidata API documentation for details on the data included in the API, licensing, and how to cite this data in your work. The signals documentation lists all the data sources and signals available through this API.

To get started using this package, view the Getting Started guide at vignette("covidcast").

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You should consider subscribing to the API mailing list to be notified of package updates, new data sources, corrections, and other updates.

Usage terms

Warning: If you use data from the COVIDcast API to power a product, dashboard, app, or other service, please download the data you need and store it centrally rather than making API requests for every user. Our server resources are limited and cannot support high-volume interactive use.

See also the COVIDcast Terms of Use, noting that the data is a research product and not warranted for a particular purpose.