Pull a Fitbit user's intraday heart-rate or activity time series for a single day
domain: dev.fitbit.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Register a Fitbit app and choose the correct application type (Personal for your own data; Client/Server for third-party users)
For non-Personal apps, submit Fitbit's Intraday Data request form — access is granted case-by-case and is not automatic
Complete OAuth 2.0 with the appropriate scope (e.g. heartrate, activity) to obtain a user access token
Call the intraday-by-date (or by-date-range) endpoint with a detail-level parameter such as 1min or 1sec
Track the per-user rate limit of 150 requests/hour via the rate-limit response headers
Known gotchas
Intraday access for non-Personal apps requires an approved request — it is not available by default the way it is for Personal apps
A single intraday request cannot span more than a 24-hour period; wider ranges silently fall back to summary data
Fitbit has announced deprecation of its legacy Web API in September 2026 — confirm the current migration path on dev.fitbit.com before building new integrations
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