What shipped, and how to build with it.
Release notes every couple of weeks, guides to the provider APIs and their quirks, and the occasional longer piece on getting health data into a shape you can work with.
Posts
Oura · · 10 min read
Oura API: accessing ring data, sleep, HRV and readiness
The Oura Ring API provides Sleep Score, Readiness Score, HRV, body temperature deviation and SpO2 through a clean REST interface. Here's what it offers and how to build with it.
Polar · · 7 min read
How to access Polar watch data in your health app
Polar's cardio versus muscle load split and ANS Charge from Nightly Recharge enable coaching features that most wearable APIs cannot support. Here's how to use them effectively.
Oura · · 5 min read
How to use Oura ring data in your app
Readiness Score, HRV trends and body temperature deviation are Oura's most actionable signals. Here's how to use them effectively in a coaching or wellness product.
Suunto · · 7 min read
Suunto API: accessing watch data for developers
The Suunto API provides workout data for 80+ sport types with GPS, heart rate, altitude metrics, Training Effect scores and VO2 max. Here's what building with it requires.
Releases · · 1 min read
Open Wearables Release 0.4.3: Health Scores, Webhooks
Open Wearables 0.4.3 ships Sleep Score and Resilience Score with open algorithms. First release where the platform produces scored health output. Outgoing webhooks added.
Releases · · 1 min read
Open Wearables Release 0.4: Oura Ring, React Native SDK
Open Wearables 0.4 adds Oura Ring support contributed by a community member, React Native SDK, raw payload storage to S3, and production infrastructure improvements.
Releases · · 1 min read
Open Wearables Release 0.3: Android, Google Health Connect, Samsung Health
Open Wearables 0.3 adds Google Health Connect and Samsung Health, completing Android platform support. Includes one-click Railway deployment and a Garmin reliability overhaul.
Releases · · 1 min read
Open Wearables Release 0.3 Beta: Strava, Apple Health SDK, Data Source Priority
Open Wearables 0.3 beta adds Strava as a provider, matures the Apple Health SDK with invitation code onboarding and refresh tokens, and introduces configurable data source priority.
Releases · · 1 min read
Open Wearables Release 0.3 Alpha: Flutter SDK, MCP Server
Open Wearables 0.3 alpha ships the first mobile SDK for Flutter with Apple Health integration and an MCP Server connecting wearable data to LLMs.
Releases · · 1 min read
Open Wearables Release 0.2.2: Production Stability, Extended Provider Support
Open Wearables 0.2.2 fixes critical sync issues across Apple Health, Whoop, and Suunto. Adds sleep summaries, AWS XML import guide, and API performance improvements.
Releases · · 1 min read
Open Wearables Release 0.2.1: Whoop, Mobile SDK Authentication
Open Wearables 0.2.1 adds Whoop as the fourth provider, user-scoped SDK tokens for mobile apps, and a sleep summaries endpoint.
Releases · · 1 min read
Open Wearables Release 0.2: Sleep, Workouts, Timeseries
Open Wearables 0.2 adds Sleep, Workout, and Timeseries endpoints with 59 data types and 870 tests.
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