Judge0 CE

{
  "service_type": "platform",
  "base_url": "https://ce.judge0.com",
  "auth_method": "none",
  "auth_config": {},
  "endpoints": [
    {
      "method": "GET",
      "path": "/",
      "description": "Home/Landing page"
    },
    {
      "method": "GET",
      "path": "/languages",
      "description": "List supported programming languages"
    },
    {
      "method": "POST",
      "path": "/submissions",
      "description": "Create a new code submission for execution"
    },
    {
      "method": "GET",
      "path": "/submissions/{token}",
      "description": "Get submission status and results"
    }
  ],
  "pricing_model": {
    "type": "free",
    "details": "Judge0 CE (Community Edition) is free to use with no API key required. It is a public instance with limited resources and rate limits, intended for testing and educational use."
  },
  "rate_limits": {
    "general": "Limited to community edition; typically ~10 requests per second per IP",
    "additional": "Submissions are limited to 5 seconds execution time and 256 MB memory per request; see documentation for exact limits"
  },
  "capabilities": [
    "Execute code in 60+ programming languages",
    "Run code snippets via HTTP API",
    "Scope-based content sharing  (not applicable)",
    "Code compilation and interpretation",
    "Submission status and result retrieval",
    "Batch submissions support (multiple submissions at once)",
    "Custom input via stdin",
    "Provide execution time, memory usage, and exit code",
    "Support for multiplecompiler flags (limited on CE)",
    "No OAuth/authentication required"
  ],
  "raw_analysis": "Judge0 is an open-source online code execution system that allows users to run code in a sandboxed environment. The Community Edition (CE) provides a free, public API at ce.judge0.com for anyone to test and integrate code execution into their applications or learning platforms. It is mature and widely used in education, competitive programming, and developer tools. The platform supports over 60 programming languages and offers simple REST endpoints to create submissions and poll for results. It lacks built-in authentication, making it ideal for small-scale use, but rate limits and resource constraints apply. It also has integrations via SDKs for popular languages (Node.js, Python, Ruby, etc.) and can be self-hosted. The service is primarily used for executing untrusted code safely in a sandbox, with features like time and memory limits. There is no public pricing for premium tiers on this instance; the CE is free, while higher-tier options exist on Judge0's official cloud offering (judge0.com)."
}

2/3 tests passed

{
  "overall": 62,
  "dimensions": {
    "token_efficiency": 8.0,
    "first_try_success": 8.0,
    "response_parseability": 6.0,
    "error_clarity": 5.0,
    "doc_quality": 6.0,
    "auth_simplicity": 9.0,
    "latency": 7.0,
    "consistency": 5.0
  },
  "pricing_normalized": {
    "type": "free",
    "description": "Judge0 CE is free with no API key. Public instance has rate limits and limited resources for testing/educational use."
  },
  "issues": [
    "No llms.txt file (404), making it harder for agents to discover features via standard LLM discovery protocol",
    "Missing security headers on website (common but worth noting for production use)",
    "Rate limits on public CE instance may cause inconsistent behavior for batch or heavy use",
    "No detailed error clarity documentation — user must infer limitations from pricing/community notes",
    "Response is HTML-based docs, not machine-readable structured API specs (OpenAPI not directly exposed)",
    "No authentication means no per-user quotas or accountability, which could be abused; but also simplifies onboarding",
    "Latency ~675ms on first check, acceptable but not exceptional for code execution API",
    "Consistency untested beyond single uptime check — no status page evident in provided data"
  ],
  "recommendations": [
    "Add a llms.txt file to improve AI agent discovery and feature parsing",
    "Provide an OpenAPI/Swagger spec at a well-known URL for agents to parse programmatically",
    "Create explicit documentation on rate limits, error codes, and limitations for the CE instance",
    "Add a public status page to build trust and help agents assess reliability",
    "Consider adding API key support for premium tier to enable quotas and tracking",
    "Expose structured JSON examples for every endpoint in the docs for easier schema extraction"
  ]
}