Momentum  a healthcare AI agency  has unveiled Open Wearables: the industry’s first open-source API designed to unify wearable health data from over 200 devices into a single, consistent interface. Previously, developers and health startups faced a difficult choice: invest months building custom integrations for each device platform or pay expensive fees for proprietary aggregators. Open Wearables tackles this fragmentation by offering a self-hosted, privacy-compliant solution that significantly reduces integration time and technical barriers. Built to support major wearable ecosystems  including Apple Health, Garmin, Fitbit, Oura, Whoop and Strava  Open Wearables handles complex challenges such as authentication flows, data normalization, timestamp consistency and data deduplication. This gives developers a unified data model that can power AI-enabled health insights across biometric streams such as heart rate, sleep, activity patterns and more.

Unlike closed, proprietary health data systems that lock developers into subscription models, Open Wearables’ open-source architecture lets organisations retain full control over their data, making it easier to comply with privacy and regulatory standards such as HIPAA. The platform’s self-hosting ability also eliminates per-user fees and vendor lock-in  a shift that could accelerate innovation for startups and clinical research. 

Momentum envisions the platform powering a broad range of health and wellness applications, from personalised coaching and recovery analytics, corporate wellness programs and telehealth monitoring to clinical trials and longevity research  all without the usual overhead of building multiple device integrations from scratch. The open-source community is invited to contribute new integrations and enhancements, further expanding the ecosystem’s reach.