Screen Every Message
Before Your AI Responds

1,000 free API calls/month. No credit card. Key in 60 seconds.

// Screen a message before your AI responds
const response = await fetch('https://merchantguard.ai/api/v2/sentinela/screen', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': 'your-api-key'
  },
  body: JSON.stringify({
    message: "ya te hice la transferencia, mandame el producto",
    locale: "es-PA",
    session_id: "conv_abc123",
    agent_id: "my-chatbot"
  })
});

// Response in <10ms
{
  "verdict": "BLOCK",
  "score": 85,
  "category": "fake_payment",
  "cascade_depth": 0,        // Caught at L0 — never hit ML
  "latency_ms": 0.8,
  "matched_patterns": ["fp_transfer_es"],
  "reason": "Fake payment claim detected (phonetic-folded match)"
}