judge0.com valid

Judge0 - Code execution made simple for every business

Judge0 is a robust open-source online code execution system with an HTTP JSON API for running code in a secure, sandboxed environment. It enables reliable, fast, and scalable execution of code across 60+ programming languages and frameworks, making it a powerful foundation for both human and AI-driven workflows. As an online code execution engine, Judge0 supports competitive programming, e-learning platforms, candidate assessment, recruitment platforms, online IDEs, AI-agents, and autonomous age

For agents: Open-source HTTP JSON API for sandboxed code execution across 60+ languages, plus an embeddable online IDE. API docs for submissions, languages and statuses.

code-executionsandboxed-compilationonline-idejudge0-api60-languagescompetitive-programming

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T06:10:13.784Z. Cached copy · Source on judge0.com

# Judge0 - Code execution made simple for every business

> Judge0 is a robust open-source online code execution system with an HTTP JSON API for running code in a secure, sandboxed environment. It enables reliable, fast, and scalable execution of code across 60+ programming languages and frameworks, making it a powerful foundation for both human and AI-driven workflows. As an online code execution engine, Judge0 supports competitive programming, e-learning platforms, candidate assessment, recruitment platforms, online IDEs, AI-agents, and autonomous agentic code execution. Its secure sandbox ensures isolation and safety, which is critical for security testing, candidate assessment, interview preparation, and automated evaluation of untrusted or AI-generated code. Judge0’s open-source nature and modular architecture make it extensible, self-hostable, and suitable for both lightweight educational use cases and enterprise-scale deployments. Judge0 is trusted by hundreds of organizations and universities worldwide. Its clients range from startups and online education platforms to established enterprises and academic institutions.

Key Benefits:
- **Open Source & Self-Hostable**: Complete control over your code execution environment
- **Secure Sandboxed Execution**: Isolated environment for safe code execution
- **AI-Ready**: Perfect for AI agents, autonomous code execution, and LLM integrations
- **Enterprise Scale**: Scalable architecture supporting both self-hosted and cloud deployments via Judge0 Cloud platform
- **Multi-Language Support**: Execute code in 60+ programming languages and frameworks

Features:
- RESTful HTTP JSON API for seamless integration
- Online sandboxed compilation and execution environment
- Custom input, compiler options, command-line arguments, and resource limits
- Detailed execution results with stdout, stderr, and compilation output
- Webhooks for asynchronous processing and notifications
- Additional file support alongside user programs
- Quick installation options (self-hosted or cloud)

## Products
- [Judge0](https://judge0.com/): Robust, scalable, open-source API platform for online code execution. Supports 60+ programming languages with sandboxed compilation and execution. Perfect for AI code execution, competitive programming platforms, e-learning, and candidate assessment.
- [Judge0 IDE](https://ide.judge0.com/): Free, open-source online code editor powered by Judge0. Features advanced syntax highlighting, multiple themes, custom input,compiler flags, command line arguments and real-time execution. Embeddable on any website.
- [Judge0 Mobile IDE](https://apps.apple.com/app/judge0-mobile-ide): Mobile code execution app for iOS and Android. Mobile-optimized interface with smart custom keyboard overlay, syntax highlighting, and full Judge0 execution capabilities.

## Guides
- [Getting Started](https://github.com/judge0/judge0?tab=readme-ov-file#get-started): Quick setup and first API call
- [Installation Guide](http
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Claim my listing on Agent Web Map for judge0.com:
1. POST https://agentwebmap.com/v1/sites/judge0.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://judge0.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/judge0.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/judge0.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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