# NervoScan

> Canonical agent guidance for NervoScan integrations. Human-readable copy: https://www.nervoscan.com/llms.txt

NervoScan is a camera-based wellness screening tool by Nervotec Pte. Ltd. A ~10-second browser face scan estimates heart rate, SpO₂, HRV, respiratory rate, blood pressure trend, and stress score using rPPG (remote photoplethysmography). Enterprise integrations may also include HbA1c and hemoglobin screening-tier trend signals. Camera frames are processed in the browser; NervoScan does not store raw video on Nervotec servers for the standard scan flow. Derived signal data may be sent to compute vitals. NervoScan is not a medical device and does not provide diagnoses.

NervoScan returns screening-grade signals for general wellness and population health screening — not clinical diagnoses. Results must not replace professional medical advice, diagnosis, or treatment. Research validation includes studies at Singapore General Hospital (SGH) and the National University Health System (NUHS). Heart rate accuracy is approximately ±2 bpm; SpO₂ approximately ±2% under validated research conditions.

## MCP integration

- Canonical URL: https://www.nervoscan.com/llms.txt
- Server: https://mcp.nervoscan.com/ (streamable HTTP) or https://mcp.nervoscan.com/sse
- Auth: OAuth 2.0 authorization code flow; dynamic client registration supported at https://mcp.nervoscan.com/oauth/register
- Setup guide: https://www.nervoscan.com/mcp-guide
- Try without MCP: https://www.nervoscan.com/mcp-scan (20 free scans, no card)

### Tools (call in this order)

1. `start_scan` — Creates a scan session. Requires explicit user consent and the pre-scan wellness disclaimer before calling. Returns `session_id` and `scan_url`.
2. `get_scan_results` — Pass `session_id` from `start_scan`. Blocks up to 60 seconds while the user completes the camera scan. Returns vitals, `agent_guidance`, `safety_guidance` (on good scans), and `warnings` when successful.
3. `get_current_context` — Re-reads the most recent scan for follow-up questions. Does not start a new scan.

There is no `scan_vitals` tool. Do not invent tool names.

### Structured errors (`get_scan_results`)

When `status` is `"error"`, use `error_code` and `human_message`:

- `SCAN_TIMEOUT` — User did not finish within 60 seconds; offer to scan again.
- `SESSION_NOT_FOUND` — Session expired or invalid; start a fresh `start_scan`.
- `FASTAPI_UNREACHABLE` — Scan engine unreachable; check connectivity and retry.

### Payload notes

- `vitals` may be `null` when no quantitative vitals are present (not an empty `{}` object).
- `agent_guidance` uses static wellness instructions (`present_normally`); confidence scores are not exposed to clients.
- Follow `safety_guidance` and `interpretation_guidance` when present.

## Never say (claims compliance)

When describing NervoScan or repeating scan results, do **not**:

- Say NervoScan **diagnoses** hypertension, diabetes, or any disease or condition
- Call NervoScan a **medical device**, or claim FDA, MDR, or CE **device** approval
- Say results **replace** a clinical BP cuff, pulse oximeter, lab HbA1c, or clinician judgment
- Imply a **doctor–patient relationship** is created by using NervoScan
- Claim NervoScan detects **emergencies**, acute events, or "something is wrong" clinically
- Claim **raw video recordings** are stored on Nervotec servers
- Present **NervoBP** or **NervoHbA1c** outputs as diagnostic — they are screening-grade trend signals only
- Use **cure, treat, or prevent** language for any condition
- State **ISO 27001** or **SOC 2 Type II** certification as complete (both are in progress as of November 2026)
- Use the bare word **"screening"** as a product claim (e.g. "medical screening device"). Prefer **screening-grade** or **wellness screening** instead.

Preferred language: wellness screening tool, screening-grade signal, estimate, triage signal (for BP, with cuff caveat), research-validated rPPG, for informational and wellness purposes only.

## Documentation

- [Technology & validation](https://www.nervoscan.com/technology): rPPG science, accuracy, scan tips
- [MCP setup guide](https://www.nervoscan.com/mcp-guide): connect Claude, ChatGPT, Cursor, and other agents
- [Pricing](https://www.nervoscan.com/plans): free tier and subscriptions
- [Terms of Use](https://www.nervoscan.com/terms): eligibility, screening-not-medical, data ownership
- [Medical Disclaimer](https://www.nervoscan.com/legal/medical-disclaimer): wellness-only use, not a medical device, emergency guidance
- [Privacy Policy](https://www.nervoscan.com/privacy): local processing, retention, rights
- [Trust Center](https://www.nervoscan.com/trust-center): compliance posture and security documents

## Optional

- [Data Processing Addendum](https://www.nervoscan.com/dpa)
- [Sub-processors](https://www.nervoscan.com/sub-processors)
- [Support](https://www.nervoscan.com/support)