Support for the legacy Fitbit Web API ends on September 30, 2026
Important: Support for the legacy Fitbit Web API ends on September 30, 2026. After this date the API will continue to operate, but Google will no longer fix bugs or provide API support. On October 30, 2026, the Fitbit Web API will be turned off and will no longer function or sync data to or from Fitbit users. To continue accessing data for your users after this date, migrate to the Google Health API.
Irregular Rhythm Notifications
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Irregular Rhythm Notifications

The Irregular Rhythm Notifications (also known as IRN) endpoints are used for querying the user's engagement with the IRN feature and the alerts received. The IRN API is for research use or investigational use only, and is not intended for clinical or diagnostic purposes.

Developers can use the following API endpoints when integrating the irregular rhythm notification data type:

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