How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

WHOOP Cycle API

The Cycle API from WHOOP — 3 operation(s) for cycle.

WHOOP Cycle API is one of 7 APIs that WHOOP publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Cycle. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, rate-limit docs, and a getting-started guide.

This API exposes 3 operations across 3 paths, and defines 7 schemas. It is described by OpenAPI 3.2.0.

Requests are made against a single base URL, https://api.prod.whoop.com/developer.

3 operations 3 paths 7 schemas 3 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
Base URL
https://api.prod.whoop.com
Authentication
OAuth 2.0, OAuth 2.0
Resource Areas
1

Authentication & Security 2

WHOOP Cycle API declares 2 security schemes for authenticating requests. It supports OAuth 2.0 (OAuth) using the authorizationCode flow, exposing 6 scopes. It supports OAuth 2.0 (Trusted_Partner) using the clientCredentials flow, exposing 1 scope.

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.

Cycle 3
GET
/v2/cycle/{cycleId}
Get the cycle for the specified ID
getCycleById 1 param → 200400404401429500
GET
/v2/cycle
Get all physiological cycles for a user, paginated. Results are sorted by start time in descending order.
getCycleCollection 4 params → 200400401429500
GET
/v2/cycle/{cycleId}/sleep
Get the sleep for the specified cycle ID
getSleepForCycle 1 param → 200400404401429500

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Sleep (12 properties), Cycle (9 properties), SleepStageSummary (8 properties), SleepScore (6 properties). Each schema is shown below with its type and property counts.

SleepNeeded
object
Breakdown of the amount of sleep a user needed before the sleep activity. Summing all individual components results in the amount of sleep the user needed prio…
4 properties 4 required
Sleep
object
The collection of records in this page.
12 properties 10 required
SleepStageSummary
object
Summary of the sleep stages
8 properties 8 required
Cycle
object
The collection of records in this page.
9 properties 7 required
SleepScore
object
WHOOP's measurements and evaluation of the sleep activity. Only present if the Sleep State is SCORED
6 properties 2 required
CycleScore
object
WHOOP's measurements and evaluation of the cycle. Only present if the score state is SCORED
4 properties 4 required
PaginatedCycleResponse
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

whoop-cycle-api-openapi.yml Raw ↑

Other APIs WHOOP publishes across the network.

WHOOP Activity ID Mapping API
WHOOP Partner API
WHOOP Recovery API
WHOOP Sleep API
WHOOP User API
WHOOP Workout API
Where this information came from

This is an independent, third-party profile of WHOOP Cycle API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.