Hackerearth API vs KONTESTS API

Two free Programming APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

Choose Hackerearth API if its data fits your use case better; on access and reliability it's level with KONTESTS API.
Choose KONTESTS API if you want to start without an API key.

	Hackerearth API	KONTESTS API
What it does	For compiling and running code in several languages.	For upcoming and ongoing competitive coding contests.
Provider	HackerEarth	kontests.net
API key	Required	Not needed
HTTPS	Yes	Yes
CORS (browser calls)	Unknown	Unknown
Status today	Online · 1521 ms	Last check failed
Uptime (30 days)	Up	Down
Developer rating	Not rated yet	Not rated yet
Price	Free / free tier	Free / free tier

For compiling and running code in several languages.

HackerEarth is a global hub of 5M+ developers. We help companies accurately assess, interview, and hire top developers for a myriad of roles.

Strengths

For upcoming and ongoing competitive coding contests.

Strengths

Prototyping or a tutorial? Pick the one that needs no API key.
Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
Still unsure? Both are free to try: send one request to each and compare the data you get back.

Hackerearth API requires an API key; KONTESTS API doesn't, so KONTESTS API is quicker to try.