Withings MCP. Correlate weight changes with blood pressure and sleep scores.

Withings MCP Server: Your Biometric Data Source

When you hook up your Withings account, your agent gains direct access to years of biometric data collected from smart scales, watches, and medical devices. It's a massive feed of personal health metrics—weight changes, blood pressure readings, heart rate spikes, sleep cycles, and every workout you log. Instead of wading through spreadsheets, your AI client pulls these trends for you.

Getting Your Vitals Straight

To monitor core physiological measurements, your agent uses get_measurements, which retrieves vital stats like weight, body fat percentage, systolic blood pressure, and diastolic blood pressure using specific type codes and dates. If you need a snapshot of heart rate at a precise moment, get_heart_rate pulls those exact measurements for a given time or date.

You can also check your overall progress against the health and fitness goals you set up with get_user_goals. When building historical trends—say, tracking how your weight or body fat percentage changed over six months—your agent analyzes this time-series data from these tools.

Tracking Activity and Workouts

For activity, the server gives you layers of detail. If you just need a quick count of total steps or an estimate of calories burned for the day, your client calls get_activity. But if you want the granular breakdown—the high-frequency data captured moment by moment throughout the day—you use get_intraday_activity.

For specific exercise sessions like running or swimming, the get_workouts tool pulls a full log. It details the workout category, how long it lasted, the distance covered, and the calories you burned during that time. Your agent can combine this workout data with heart rate measurements from get_heart_rate; for instance, it'll show you if running really spikes your resting heart rate compared to a rest day.

Sleeping Like an Expert

When it comes to sleep, the server gives you both a quick score and deep metrics. You can grab a simple overview of daily sleep using get_sleep_summary, which spits out total time slept and your overall nightly score. For a deeper dive into recovery patterns, get_sleep_details pulls everything: exactly how long you spent in deep sleep, light sleep, and REM stages.

Your agent compiles this data so you can compare the quality of different nights.

Managing Devices and Alerts

Your client doesn't just read data; it manages your setup too. To check if all your gear is working right—like seeing the battery life or connection health on every physical Withings device—you run get_user_devices. When you need to be notified instantly, you set up alerts with subscribe_notifications. This tool configures webhooks so your agent will ping you immediately when a specific event happens, whether it's a morning weigh-in or a new blood pressure reading.

You can also pull detailed records of all completed workouts using the get_workouts log.

It’s basically an entire health record system accessible through simple commands from your AI client.