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
Guides · · 6 min read
How to normalize wearable data across providers
If you are looking for a Terra API alternative, Open Wearables normalizes data from all major wearable providers into a unified schema. Self-hosted, open source, no per-user fees.
Guides · · 3 min read
How to sync wearable data from multiple devices
Garmin API uses webhook-only delivery, not REST polling. Learn how Open Wearables handles Garmin alongside Polar, Suunto, Whoop, and Apple Health in a unified normalized API.
Apple Health · · 4 min read
How to integrate Apple Health data into your app
A practical apple health integration guide using Open Wearables. Learn the two paths: mobile SDK for real-time background sync and XML import for historical HealthKit exports.
Releases · · 3 min read
Open Wearables 0.5.2: Polar Webhooks, Sport Type Expansion, and HRV Score Integrity
Open Wearables 0.5.2 adds Polar webhook support, expands workout type mappings, new Garmin fields, and stricter HRV scoring.
Guides · · 7 min read
Wearable API integration: comparing SaaS, custom build, and open source
A technical founder’s guide to choosing a wearable health data API. Compare SaaS vendors, in-house builds, and self-hosted open source by cost, compliance, and engineering effort.
Guides · · 4 min read
How to customize Open Wearables for your product
Open Wearables is built to be adapted. Learn how to customize health scoring, add provider integrations, and deploy enterprise-grade infrastructure with Momentum's engineering team.
Releases · · 2 min read
Open Wearables 0.5.1: Oura & Strava Webhooks, Live Sync Status, RMSSD HRV
Open Wearables 0.5.1 ships webhook support for Oura and Strava, live sync status via SSE, RMSSD HRV in Body Summary, and a redesigned Admin Panel dashboard. No breaking changes.
Releases · · 2 min read
Open Wearables Release 0.5.0: Webhooks, Sleep Fixes, MCP Updates
Open Wearables 0.5.0 ships complete webhook infrastructure, incoming webhooks for Whoop and Suunto, sleep calculation fixes, HRV-CV scoring, and a new MCP Server time-series tool.
Garmin · · 11 min read
Garmin Connect API: developer guide for activities and health metrics
Garmin's Health API uses push-based delivery and OAuth 1.0a, covering 100+ sport types, GPS, Body Battery, HRV, sleep and more. Here's what building with it actually requires.
Samsung Health · · 6 min read
How to connect Samsung Health to your app
The Samsung Health integration pipeline covers developer program application, OAuth 2.0, token management, data querying and normalization before you ship a single product feature.
Samsung Health · · 5 min read
Samsung Health API: Galaxy Watch data for developers
Samsung Health Platform provides server-side API access to Galaxy Watch data including heart rate, sleep stages, workouts, stress score, SpO2, HRV and body composition.
Strava · · 11 min read
Strava API 2026: developer guide to activities, heart rate and GPS data
A practical guide to connecting Strava's API in production: OAuth token refresh, rate limits, webhooks, and how to normalize activity data across multiple providers.
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