WHOOP
WHOOP is a wearable health and performance company whose wrist-worn strap (WHOOP 5.0 and medical-grade WHOOP MG) measures heart rate, HRV, respiratory rate, skin temperature, and SpO2 24/7 to compute daily Recovery, Strain, and Sleep Performance scores. The WHOOP Developer Platform exposes member fitness data through an OAuth-protected REST API (v2) covering physiological cycles, sleep, workouts, recovery, and body measurements, plus webhooks for resource updates and a Trusted Partner API for lab/diagnostics integrations.
2 APIs
21 Features
FitnessWearablesHealthRecoverySleepStrainHeart RateWorkoutBiometrics
WHOOP 5.0 — fifth-generation wrist-worn strap with 14-day battery life and on-skin sensor improvements
WHOOP MG — medical-grade variant adding ECG and blood-pressure readings
Continuous 24/7 monitoring of heart rate, HRV, respiratory rate, skin temperature, and SpO2
Daily Recovery score based on HRV, resting heart rate, and sleep performance
Daily Strain score capturing cardiovascular load across all activities
Sleep coaching with stage-by-stage analysis (light, deep, REM) and Sleep Performance %
Workout auto-detection with heart-rate zone breakdowns
Stress Monitor and Daily Outlook AI coaching
Health Monitor with vitals trends and abnormality alerts
WHOOP Coach generative AI assistant for personalized insights
Three subscription tiers — ONE ($199/yr), PEAK ($239/yr), LIFE ($359/yr)
Developer Platform with OAuth 2.0 (authorization code) member-data API
Trusted Partner program with client-credentials OAuth for lab and diagnostics integrations
v2 REST API with UUID resource identifiers and pagination cursors
Webhooks for recovery, sleep, and workout updated/deleted events with HMAC SHA-256 signing
Six member-data scopes — read:recovery, read:cycles, read:workout, read:sleep, read:profile, read:body_measurement
Rate limits — 100 requests/minute and 10,000 requests/day per client, with X-RateLimit-* headers
v1-to-v2 activity-mapping endpoint for migration
Mobile apps for iOS, Android, and Wear OS / Apple Watch companion experience
Garmin, Strava, TrainingPeaks, Apple Health, and Google Health Connect integrations
Community SDKs (Python `hedgertronic/whoop`, MCP server `shashankswe2020-ux/whoop-mcp`)