How the integration actually works
Start with the honest part, because it is the whole point. There is no Withings MCP server you connect to. Instead, your Withings scale, watch, or sleep mat talks directly to Wellness Project via our native integration, and we serve that data directly to Claude or ChatGPT.
Wellness Project reads your data via a native integration. It takes the weight, body composition, and sleep (including overnight resting heart rate) Withings measured, structures them into one continuous history, and serves that history to Claude and ChatGPT over a single MCP connection. So the real chain is Withings, then Wellness Project, then Claude or ChatGPT.
Why a native connection is better
A direct native integration is the sturdiest design. Wellness Project connects directly to the Withings API, so there is no extra phone hub to babysit and nothing to re-authorize every few weeks. When Withings measures a new weight, it flows seamlessly.
It also means every other device you own can join the same history. The Withings scale reports your morning weight, an Apple Watch or Garmin reports the workout, an Oura ring reports the sleep, and they all land in Wellness Project. Your AI coach sees body composition next to training load next to recovery, instead of one number in isolation.
Set it up in three steps
The setup is simple thanks to the native API flow. Connect your Withings account, then point Claude or ChatGPT at Wellness Project.
Get the Wellness Project app
Download Wellness Project for iPhone or Android with the buttons above, or sign in on the web. Signing in with Apple or Google takes one tap, the account is free during early access, and this is the app that stores your synced history and serves it to Claude and ChatGPT over MCP.
Connect Withings natively
In the Wellness Project app, connect your Withings account natively. We read what Withings measured and structure it into one history: weight trend, body-composition changes, and sleep, all keyed to your baseline. This is a direct, native connection to Withings.
Add the MCP connector to Claude or ChatGPT
Add the Wellness Project connector to Claude (via MCP) or ChatGPT (via the plugin). One connection is all it takes, and it covers everything in your account, including Withings. Claude and ChatGPT are the two AI integrations Wellness Project supports today.
Ask about your body data
Ask Claude or ChatGPT how your weight is trending, whether your body composition moved this month, or how your sleep score compares to last quarter. It answers from your structured history, not a single reading.
That is the entire flow. A native Withings integration on our side, no real-time promise we cannot keep. Freshness tracks whenever Withings syncs, and Wellness Project reads it from there.
Put your Withings numbers in front of an AI that remembers them.
Connect your Withings account directly to Wellness Project and let Claude or ChatGPT read your weight, body composition, and sleep against your baseline. Free during early access.
