How does Nefesh work?

Nefesh is a B2B middleware API. Send biometric signals (heart rate, HRV, voice tone, facial expression, text sentiment) to one endpoint. Get back a unified stress score (0-100) with a machine-readable suggested_action your AI can follow directly. Edge-only processing — no video or audio uploaded. Free tier available.

Is Nefesh a medical device?

No. Nefesh is classified as a General Wellness product under FDA guidance. It provides contextual AI adaptation only — no clinical interpretation, no alerts, no dosing. GDPR compliant by design.

AI-Assisted Healthcare

AI that understands patient physiology.

Middleware API that adds live biometric context to AI-assisted healthcare systems. Edge-only, GDPR compliant.

The Problem

Digital healthcare systems operate without real-time physiological context.

Digital healthcare systems rely heavily on self-reported symptoms and delayed measurements. Real-time physiological context is often missing, leaving AI-driven tools to make decisions based on incomplete information.

Adaptive Routing

Live biometric signals as real-time AI context.

Nefesh translates live biometric signals into machine-readable state data, allowing healthcare AI systems to adapt responses and interventions in real time. The API integrates as middleware — zero patient-facing changes, the first nervous system for AI.

Routing Logic

Physiological routing, automated.

Every session evaluated in real time. Patients above critical thresholds reach a human before they have to ask.

Patient message received → Nefesh evaluates stress score

↓

Score 0 – 39

AI continues session

AI continues session. Full adaptive response.

Score 40 – 79

AI adapts response

AI adapts response. Shorter, calmer, more direct.

Score 80 – 100

Flag for human review

Escalation threshold. System recommends human review above this threshold.

Configurable thresholds per use case.

Start integrating today.

1,000 API calls free. No credit card. Scale to 50,000 for $25/month.

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