
Show HN: Open Wearables – self-hosted wearable data platform with an AI layerHi, I'm Bart, one of the maintainers of Open Wearables.For the past few months we've been building an open-source, self-hosted backend that normalises health and fitness data from multiple wearable providers (Garmin, Whoop, Apple Health, Samsung Health and others) into a single AI-ready REST API - and thought it was worth sharing here too :)We built this out of our own experience doing custom wearable integrations for clients, and from working with paid SaaS solutions that often lack the flexibility to customise data pipelines or debug what's actually happening under the hood. Surprisingly, there weren't any mature open-source projects filling this gap.What you get:- A single normalised API covering 60+ health metrics (cardiovascular, sleep, body composition, activity, respiratory) and 80+ workout types across all supported providers- A dashboard to manage users, API keys, and sync status — with a full view of each user's health data across connected devices- An AI layer via MCP, letti
