Judge0 by Judge0
Run untrusted code in 60+ languages in a sandbox via a REST API, self-hosted or cloud.
Code sandboxes Open source
Price
Free (open source)
you pay only for the compute it runs on
Free tier
Yes
Basic cloud plan: 50 submissions per day at no cost
SDK downloads
—
PyPI judge0
Pricing
| Free tier | Basic cloud plan: 50 submissions per day at no cost |
|---|---|
| Cheapest paid plan | — |
| Usage price | — |
| Good to know | Cloud plans are priced in EUR (Pro €27/month for 2,000 submissions/day, €0.001 per extra submission) and sold via RapidAPI, so USD fields are empty. Self-hosting the GPL-3.0 version is free. |
From the official pricing page, checked Oct 10, 2026. Prices change: confirm before you buy.
Use it from an agent
| MCP server | Community servers only |
|---|---|
| PyPI | pip install judge0 |
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