Oura API v2
Fitness Free key (no card)
AuthenticationFree key (no card)
Rate limitDynamic per-token and per-application throttles; exact limits are returned in response headers
Documentation: cloud.ouraring.com ยท Checked Sep 13, 2026
About
Oura's API v2 exposes sleep stages, readiness scores, recovery, workouts, heart data, and body measurements from the Oura ring. A sandbox mode provides synthetic data, so you can build and test without owning a ring. Registration is free and uses standard OAuth2 (personal access tokens were deprecated in December 2025).
Details
Free to start. You may need a free key, but no credit card.
Auth: Free key (no card)
Rate limit: Dynamic per-token and per-application throttles; exact limits are returned in response headers
Verified: 2026-09-13
Best for: sleep recovery readiness
Setup
- Create a free Oura developer account on the Oura Cloud portal.
- Register a new application with your name, website, and redirect URL.
- Note the client ID and client secret for your application.
- Send the user through the OAuth2 authorization flow.
- Use the access token to read sleep, readiness, activity, and session data.
Example
GET https://api.ouraring.com/v2/usercollection/daily_sleepiness with your OAuth access tokenUse cases
- Correlate readiness scores with workouts and habits
- Build a sleep-quality dashboard from your ring data
- Prototype health apps with sandbox data before buying a ring