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Withings API

Fitness Free key (no card)

AuthenticationFree key (no card)
Rate limitNo fixed personal-use quota published; older provider guidance cites around 120 requests/minute

Documentation: developer.withings.com ยท Checked Sep 13, 2026

About

Withings makes popular smart scales, sleep mats, and watches, and its API exposes that data to developers. The official docs state there are no prerequisites and free access is provided for personal integrations. You can read weight and body measurements, activity, workouts, sleep, heart rate, and blood pressure.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: No fixed personal-use quota published; older provider guidance cites around 120 requests/minute

Verified: 2026-09-13

Best for: weight sleep health

Read the docs Back to catalog

Setup

  1. Create a Withings account and sync at least one Withings device.
  2. Create a developer account on the Withings developer portal.
  3. Register a new application to get your client ID and client secret.
  4. Run the OAuth2 flow so the user grants your app access to their data.
  5. Call the measurement endpoints with your access token.
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