This free API exposes all available regional data housed on Wikipedia. This drills down to states, provinces, and other regions depending on the geography.

This data is completely sourced from Wikipedia and is subject to Wikipedia terms of usage. That also means the accuracy of the data is dependent on user edits on Wikipedia, and therefore require adjustments from time to time.

All Operations:

# Get the list of countries with Name & ISO Alpha-2
GET /api/covid/countries

# Get country name for its equivalent ISO Alpha-2 code
GET /api/covid/countryNameByCode/:code

# Get case counts categorized under Total, Recovered, 
# and Deceased for a country by its ISO Alpha-2 Code
GET /api/covid/dailyTotals/:code

# Get global case counts categorized under Total, Recovered, and Deceased
GET /api/covid/globalCases

# Get global case counts categorized under Total, Recovered, and Deceased
GET /api/covid/globalData

# Get Total case counts for the last 7 days for a country by its ISO Alpha-2 Code
GET /api/covid/weeklyRegionalTotalCases/:code

# Get Recovered case counts for the last 7 days for a country by its ISO Alpha-2 Code
GET /api/covid/weeklyRegionalRecoverdCases/:code

# Get Deceased case counts for the last 7 days for a country by its ISO Alpha-2 Code
GET /api/covid/weeklyRegionalDeceasedCases/:code

# Get regional case counts categorized under Total, Recovered, 
# and Deceased for a country its ISO Alpha-2 Code
GET /api/covid/regionalDataByCountry/:code

Being a RESTful API, these operations can be handled by any programming language - here is a curl example to access regionalDataByCountry for the United States.

API Usage by Example:

curl --location --request GET 'https://www.cyberpurge.com/api/covid/regionalDataByCountry/US' --header 'X-Authorization: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx'