
For compiling and running code in several languages.
Hackerearth API is a free Programming API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
HackerEarth is a global hub of 5M+ developers. We help companies accurately assess, interview, and hire top developers for a myriad of roles.
Details from hackerearth.com.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
For upcoming and ongoing competitive coding contests
The Hackerearth API is provided by HackerEarth (hackerearth.com). HackerEarth is a global hub of 5M+ developers. We help companies accurately assess, interview, and hire top developers for a myriad of roles.
Yes. The Hackerearth API is listed in the Programming 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.
Yes. The Hackerearth API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Hackerearth API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Hackerearth API is served over HTTPS, so it's safe to use in production.