Challenge
Calendar-day assumptions break the cycle model
Agnotic approach
We key ingestion on Whoop's cycle identifiers so strain and recovery align to the physiological day.
Whoop
Whoop Integration Services
We integrate the Whoop API end to end — OAuth2 consent, cycle, recovery, sleep, and workout endpoints, and webhook events — normalizing strain and recovery data into FHIR Observations through a HIPAA-compliant pipeline. Real integrations, not just familiarity.
Whoop APIOAuth2FHIR R4HIPAA-Ready
Trusted by global innovators
Why Whoop integration is non-trivial
Whoop is built around strain and recovery — a physiological cycle model that tracks day strain, recovery percentage, resting heart rate, HRV, respiratory rate, and detailed sleep. The Whoop API exposes these through cycle, recovery, sleep, and workout collections once a user authorizes your app via OAuth2, with webhook events signaling new and updated records.
The subtlety is Whoop's cycle-based model and its event lifecycle. Recovery is computed against a physiological cycle rather than a calendar day, and records can be updated as the day completes, so your pipeline has to key on Whoop's cycle and record identifiers and handle updates idempotently. Mapping strain, recovery, and HRV into FHIR Observations with sound coding — while respecting Whoop's rate limits and webhook retries — is what makes the data usable beyond a fitness dashboard.
Architecture
A pipeline from the Whoop API to a FHIR-native record for strain, recovery, and sleep.
Common failure modes
Whoop pitfalls — and how we handle them
Challenge
Records update after first delivery
Agnotic approach
Idempotent, event-driven ingestion so updates apply cleanly without duplicates.
Challenge
Rate limits throttle heavy sync
Agnotic approach
Event-first ingestion, batching, and backoff keep sync within Whoop's limits.
Challenge
Refresh tokens expire and break sync
Agnotic approach
Robust token rotation and re-consent flows so users don't silently drop off.
Whoop APIs & Standards We Work With
The exact Whoop API surface your integration rides on.
Whoop API Collections
Cycle, recovery, sleep, and workout endpoints returning strain, recovery, HRV, and respiratory data.
OAuth2 & Scopes
Authorization Code flow with scoped consent (recovery, sleep, workout, profile) and refresh-token rotation.
Webhook Events
Event notifications on new and updated records, reconciled against pulls to keep the record current.
Strain & Recovery Signals
Day strain, recovery percentage, HRV, resting heart rate, and respiratory rate at full fidelity.
FHIR Observation Mapping
Each metric mapped to FHIR R4 with LOINC codes, UCUM units, and clear provenance.
Cycle-Aware Reconciliation
Key on cycle and record identifiers and handle updates idempotently so history stays clean.
Where it runs
Whoop workflows we ship
Recovery programs
Recovery and HRV trends guiding daily readiness decisions.
Sports medicine
Strain and load monitoring for athlete health and injury prevention.
Occupational health
Recovery and respiratory signals for high-demand workforces.
Clinical research
Consented strain and recovery data for study endpoints.
Behavioral & sleep
Sleep and recovery signals feeding coaching and intervention.
Chronic care
Activity and recovery tied to care-plan goals.
Strain and recovery, mapped to FHIR
Whoop's cycle-based model rewards event-driven, idempotent ingestion. That's how we build it.
Cycle
Physiological model we handle correctly
3–5 wk
Typical Whoop integration window
100%
Recovery & strain mapped to FHIR
Compliance-First Healthcare App Development Services Backed by Global Standards
15-Minute Scoping Call01
HIPAA
Health Insurance Portability and Accountability Act
Protect PHI with privacy-first architecture, encrypted storage and transmission, strict access controls, and traceable audit logs.
02
GDPR
General Data Protection Regulation
Implement lawful consent flows, data minimization, retention controls, and secure processing for sensitive health data.
03
FHIR
Fast Healthcare Interoperability Resources
Enable standardized health data exchange across apps, care teams, and systems through robust FHIR-ready APIs.
04
HL7
Health Level Seven International
Support enterprise-grade interoperability with HL7-based integrations for records, events, and clinical messaging workflows.
05
HITRUST
Health Information Trust Alliance
Align security programs to healthcare-specific control and risk management practices trusted by providers and ecosystem partners.
06
HITECH
Health Information Technology for Economic and Clinical Health Act
Design with breach notification readiness, digital record safeguards, and operational controls that support regulated care programs.
07
SaMD
FDA Software as a Medical Device
Plan software quality, traceability, and documentation pathways for products that may require SaMD review and submission.
08
MDR (EU)
Medical Device Regulation (European Union)
Prepare EU market-ready processes for risk classification, evidence tracking, and lifecycle governance under MDR expectations.
09
SAMHSA
Substance Abuse and Mental Health Services Administration
Apply confidentiality controls and consent-aware sharing models for behavioral and mental health data experiences.
Standards we build against
Whoop integration standards
FHIROAuth2LOINCUCUMHIPAA
Our Process
How we deliver Whoop integration
A phased approach across app registration, OAuth2, and FHIR mapping.
1.
Discovery & Data Scope
We map the Whoop collections and scopes your use case needs and their FHIR targets.
Privacy-first design
2.
App Registration & OAuth2
Register the Whoop app, configure scopes and redirect URIs, and build the Authorization Code flow.
Consent-aware
3.
Build & Test
Collection pulls, webhook events, cycle-aware reconciliation, and FHIR mapping validated against test accounts.
Always audit-ready
4.
Go-Live & Monitoring
Phased rollout with webhook-health and rate-limit monitoring once live.
Seamless data exchange
Data model
Whoop API surface — method & fit
Whoop's cycle-based model shapes the integration.
| Data | Collection | Access | Notes |
|---|---|---|---|
| Strain | Cycle | OAuth2 scope | Day strain computed over a physiological cycle. |
| Recovery | Recovery | OAuth2 scope | Recovery percentage, HRV, and resting heart rate. |
| Sleep | Sleep | OAuth2 scope | Sleep stages, need, and performance. |
| Notifications | Webhook events | Webhook | New/updated records; reconcile against pulls. |
Recovery is tied to Whoop cycles, not calendar days, so reconciliation keys on cycle identifiers.
Featured case study
Read Case StudyLera Health: compliant women's health platform
Related proof of compliant, integration-heavy delivery: the privacy-first data layer we built for Lera Health is the same foundation we bring to ingesting Whoop strain and recovery data into a compliant FHIR record.
Why Partner With Us
15-Minute Scoping CallWhy teams trust us with Whoop
We ship Whoop integrations that respect its cycle-based model and event lifecycle.
Compliance-First by Default
HIPAA, OAuth2 consent, and secure token handling designed in from sprint one.
Strain & Recovery Depth
We understand Whoop's cycle model and how to map it to FHIR — no ramp-up on your budget.
Faster Go-To-Market
App registration, OAuth2, and FHIR mapping run in parallel toward a live integration.
Dedicated Product Teams
One accountable team across backend engineering, FHIR, and compliance.
Frequently Asked Questions
A Whoop API integration — OAuth2, cycle/recovery/sleep ingestion, webhooks, and FHIR mapping — typically runs 3–5 weeks. Heavier performance or RPM logic extends that. We scope against your exact collections.
Related Solutions
Ready to bring Whoop data into your platform?
Tell us the collections and use case. We'll return a plan covering OAuth2, webhooks, cycle reconciliation, and FHIR mapping.
contact@agnotic.com
Partnerships
contact@agnotic.com