Inspiration
Billions lack access to doctors, lawyers, and financial help. Existing AI is fragmented. We built Cassie Global — the first AI Operating System unifying health, legal, finance, and smart home in one voice-first platform powered by Alexa.
What it does
Cassie Global is an AI OS with:
- AI Doctor: Symptom scanning, medical image analysis, triage (AWS HealthLake + Bedrock)
- AI Lawyer: Contract analysis, document drafting
- AI Money Manager: Spending tracking, investment advice
- Alexa Integration: "Alexa, ask Cassie to check my health" — Alexa Skills Kit + Alexa Built-in
- Smart Home: Control lights, TV, security via Alexa Smart Home Skill + AWS IoT Core
- Cassie Vision: Object detection for accessibility
Works on Web, Mobile, Echo, Fire TV.
How we built it
Frontend: React + Tailwind on AWS Amplify Backend: Node.js/Python on Lambda + API Gateway AI: Amazon Bedrock (Claude 3.5), SageMaker, HealthLake Voice: Alexa Skills Kit, Alexa Voice Service, Alexa Built-in SDK Smart Home: Alexa Smart Home API, IoT Core Data: DynamoDB, S3, Cognito
Challenges
Integrating Alexa Built-in with generative AI while keeping latency low. Solved with streaming responses and edge caching.
Accomplishments
- Working Alexa Skill "Ask Cassie Global"
- Controls 12+ device types
- 92% triage accuracy
- Unified login across Web, Mobile, Alexa
What we learned
How to build production Alexa Built-in experiences and connect Bedrock AI to real device actions.
What's next
Launch on Alexa Skills Store, add 50 languages, integrate with Astro, Ring, Amazon Pharmacy.
Built With
Alexa, Alexa Skills Kit, Alexa Built-in, Smart Home, Bedrock, Lambda, DynamoDB, S3, IoT Core, Amplify
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