{
  "demo": true,
  "protocol": "MPP",
  "endpoint": "/api/v1/mpp/code-sandbox",
  "price_usd": 0.15,
  "preview": {
    "code_analyzed": "import json\nprint(json.dumps({'status': 'verified'}))",
    "syntax_valid": true,
    "ast_security_audit": {
      "forbidden_syscalls": 0,
      "network_exfiltration_attempts": 0,
      "safety_verdict": "PASSED"
    },
    "simulated_stdout": "{\"status\": \"verified\"}",
    "exit_code": 0,
    "execution_time_ms": 18
  },
  "notice": "Pay $0.15 USDC via MPP on Base for sandboxed agent code execution and verification."
}