Indonesian government Covid data per province.
COVID-ID API is a free Health API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Details on Covid-19 cases across Canada
COVID-19 live statistics into sites per hour
Yes. The COVID-ID API is listed in the Health category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The COVID-ID API requires no authentication, so you can start making requests without signing up.
Yes. The COVID-ID API supports CORS, so front-end JavaScript can call it directly.
Yes. The COVID-ID API is served over HTTPS, so it's safe to use in production.