# Presage Technologies - SmartSpectra SDK

> Contactless vital signs measurement SDK. Turn any camera into a clinical-grade biometric sensor.

## What is SmartSpectra?

SmartSpectra is an SDK that enables contactless vital signs measurement using smartphone or webcam cameras. No wearables or hardware required.

**Measurements available:**
- Heart rate (HR)
- Heart rate variability (HRV)
- Breathing rate
- Blood pressure changes (relative)
- Stress/relaxation indicators

**Accuracy:** <1.62% error rate vs clinical equipment (validated in clinical trials)

## For AI Agents

This site is designed for both humans and AI agents. Content is modular and machine-readable.

### Documentation Files

Fetch these markdown files for detailed information:

| Topic | URL |
|-------|-----|
| Quickstart (General) | https://presage.tech/docs/quickstart.md |
| Quickstart (Swift/iOS) | https://presage.tech/docs/quickstart-swift.md |
| Quickstart (Kotlin/Android) | https://presage.tech/docs/quickstart-kotlin.md |
| Quickstart (Python) | https://presage.tech/docs/quickstart-python.md |
| Quickstart (JavaScript) | https://presage.tech/docs/quickstart-javascript.md |
| Quickstart (Java) | https://presage.tech/docs/quickstart-java.md |
| Pricing | https://presage.tech/pricing |
| Studies | https://presage.tech/studies |
| Privacy Policy | https://api.physiology.presagetech.com/privacypolicy |
| Model Cards | https://presage.tech/docs/model-cards.md |
| Examples | https://presage.tech/docs/examples.md |
| FAQ | https://presage.tech/docs/faq.md |

### Machine-Readable Specs

- Chat API: POST https://presage.tech/api/chat
- Human interface: https://presage.tech

## Quick Start

### iOS (Swift)
```bash
pod install SmartSpectra
```

### Android (Kotlin)
```gradle
implementation 'com.presage:smartspectra:1.0.0'
```

### Basic Usage (Swift)
```swift
import SmartSpectra

let spectra = SmartSpectra(apiKey: "psg_your_key")
spectra.startMeasurement { result in
    print("Heart Rate: \(result.heartRate) bpm")
}
```

Get API key: https://app.presage.tech

## Pricing

| Plan | Price | Use Case |
|------|-------|----------|
| Community | Free | Non-commercial, learning |
| Business | $0.007/measurement ($200/mo min) | Production apps |
| Enterprise | Custom | Large scale, on-premise |

## Technical Requirements

- iOS 13.0+ / Android API 24+ / Modern browsers
- Front-facing camera (720p+ recommended)
- Good lighting conditions
- 30-60 second measurement duration

## Links

- Website: https://presage.tech
- Dashboard: https://app.presage.tech
- iOS Demo App: [app store url]
- Android Demo App: [play store url]
- GitHub: https://github.com/presage
- Discord: https://discord.gg/presage

## Contact

- Support: support@presage.tech
- Sales: sales@presage.tech
- Security: security@presage.tech