Withings to Intervals.icu

Command line

Copy weight and body fat into Intervals.icu

This command-line tool copies scale weight and body-fat readings from the official Withings API into Intervals.icu, a training log. It uses the earliest reading for each day and fills empty fields unless you explicitly request overwrites.

Install it with Python 3.10 or newer and authorize your own Withings developer application. You also need an Intervals.icu API key; the package is marked beta and has one recent source commit. On Start for Free API apps, accounts created from October 13, 2026 need Withings+; earlier accounts remain exempt.

Send body measurements to your training apps
Preview changes with a dry run
Skip locked days and uncertain user assignments
Backfill selected dates or full history

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Withings scales

Some models have limited support

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