Open Wearables bets MIT code beats proprietary health APIs; PH #2

Open Wearables is an MIT-licensed, self-hosted platform that unifies data from over 200 wearable devices — Apple Health, Garmin, Whoop, Oura, Polar, Suunto, Strava, Fitbit, Ultrahuman, Samsung, and Google Health — into one REST API. It computes health scores from raw streams, exposes structured context to AI through an MCP server, and is built and maintained by Momentum, a healthtech software house with more than 10 years of experience.

The bet is explicitly anti-aggregator: instead of charging per user like proprietary platforms such as Terra, Momentum released the integration layer for free, self-hosted, so health data never passes through a vendor's servers. Founder Jan Kamiński called it 'the open infrastructure layer for health data that the industry has been missing,' arguing startups should not choose between months of custom integration work and vendor lock-in.

Momentum launched the platform in December 2025, per HIT Consultant, then brought it to Product Hunt on April 29, 2026, where it earned #2 Product of the Day with 583 upvotes and 313 comments — unusually heavy comment engagement for a developer tool. The stack ships as a FastAPI/PostgreSQL/Redis/Celery project with iOS, Android, Flutter, and React Native SDKs, Docker Compose deployment, and a developer portal.

As of late August 2026 the project is live in production deployments, actively maintained by Momentum plus community contributors who added Oura, Fitbit, and Ultrahuman integrations. Revenue is meant to come from enterprise support contracts, custom integrations, and managed deployments rather than API seats, but no managed cloud offering has been released yet.