Query your Garmin, Oura, Whoop, Fitbit, or Apple Health data via the Yeww API. Get sleep, HRV, recovery, steps, readiness, and more — all through one API key. Yeww aggregates multiple wearables so you get a single normalised health snapshot regardless of which device you wear.
Access your wearable health data (Garmin, Oura, Whoop, Fitbit, Apple Health, Google Fit) via the Yeww REST API. One API key, all your devices.
curl -s -H "Authorization: Bearer $YEWW_API_KEY" \
"https://longevity-guide-wine.vercel.app/api/v1/health" | jq
provider — which wearable is connected (GARMIN, OURA, WHOOP, FITBIT, APPLE, GOOGLE)metrics.sleep — last night's hours, quality label, deep sleep minutes, REM minutesmetrics.heart — resting HR (bpm), HRV (ms), HRV trend vs 7-day baseline (up/stable/down)metrics.activity — steps, active calories, active minutes (not all providers track all fields)metrics.recovery — score 0–100; label is device-specific:
metrics.stress — stress level and category (available on Garmin and some others)metrics.strain — Whoop Strain score (0–21 scale, cardiovascular load); null for non-Whoop devicespillar_scores — sleep / movement / recovery / nutrition / overall (0–100)trends — 7-day rolling averages for sleep hours, steps, and HRVlast_sync — ISO timestamp of when data was last received from the wearableWhen the user asks about their health, sleep, recovery, training readiness, or fitness:
provider when explaining what metrics mean — Whoop Recovery and Garmin Body Battery
mean different things even though both are 0–100 scoresnull, acknowledge it gracefully (e.g. "Whoop doesn't track steps")trends fields to give context ("your sleep is down from your 7-day average")pillar_scores to give a holistic summary when askedhttps://longevity-guide-wine.vercel.app/api/v1/health — returns health metrics for the
authenticated user only; no PII beyond what is stored in their own Yeww account is transmittedYEWW_API_KEY is stored as an environment variable and is never written to disk,
logged, or included in any output shown to the user