Judge0 CE API
Online code execution system. A free programming API by Judge0 CE.
Strengths
- HTTPS
Judge0 CE 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 Judge0 CE 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.
Side by side
| Judge0 CE API | KONTESTS API | |
|---|---|---|
| What it does | Online code execution system. A free programming API by Judge0 CE. | For upcoming and ongoing competitive coding contests. |
| Provider | Judge0 CE | kontests.net |
| API key | Required | Not needed |
| HTTPS | Yes | Yes |
| CORS (browser calls) | Unknown | Unknown |
| Status today | Online · 596 ms | Last check failed |
| Uptime (30 days) | Up | Down |
| Developer rating | Not rated yet | Not rated yet |
| Price | Free / free tier | Free / free tier |
About each API
KONTESTS API
For upcoming and ongoing competitive coding contests.
Strengths
- No API key needed
- HTTPS
How to choose between them
- 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.
Judge0 CE vs KONTESTS FAQ
Which needs an API key, Judge0 CE API or KONTESTS API?
Judge0 CE API requires an API key; KONTESTS API doesn't, so KONTESTS API is quicker to try.
More comparisons
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- Hackerearth vs Judge0 CE
- Codeforces vs Judge0 CE
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