Privacy-first, unofficial Withings MCP server for AI health, sleep, activity and heart-rate agents.
Privacy-first, unofficial Withings MCP server for AI health, sleep, activity and heart-rate agents.
A well-structured MCP server for Withings health data with solid authentication, proper token handling, and thoughtful privacy controls. Tokens are securely stored locally with restricted permissions and never exposed. Minor code quality issues and overly broad error handling do not materially impact security given the server's legitimate purpose. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
5 files analyzed · 9 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
This plugin requests these system permissions. Most are normal for its category.
Set these up before or after installing:
Environment variable: WITHINGS_CLIENT_ID
Environment variable: WITHINGS_CLIENT_SECRET
Environment variable: WITHINGS_REDIRECT_URI
Environment variable: WITHINGS_TOKEN_PATH
Environment variable: WITHINGS_PRIVACY_MODE
Environment variable: WITHINGS_CACHE
Environment variable: WITHINGS_CACHE_PATH
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-davidmosiah-withingsmcp": {
"env": {
"WITHINGS_CACHE": "your-withings-cache-here",
"WITHINGS_CLIENT_ID": "your-withings-client-id-here",
"WITHINGS_CACHE_PATH": "your-withings-cache-path-here",
"WITHINGS_TOKEN_PATH": "your-withings-token-path-here",
"WITHINGS_PRIVACY_MODE": "your-withings-privacy-mode-here",
"WITHINGS_REDIRECT_URI": "your-withings-redirect-uri-here",
"WITHINGS_CLIENT_SECRET": "your-withings-client-secret-here"
},
"args": [
"-y",
"withings-mcp-unofficial"
],
"command": "npx"
}
}
}From the project's GitHub README.
Local-first MCP server that connects AI agents to your Withings body, sleep, activity and heart data.
Unofficial project. Not affiliated with, endorsed by or supported by Withings. Withings is a trademark of its respective owner. Use this only with your own Withings account and in line with the Withings Public API terms.
Built by David Mosiah for people who use Claude, Cursor, Hermes, OpenClaw or other MCP-compatible agents to think about body composition, sleep and long-term health trends — without copy-pasting numbers from the Withings app.
Part of Delx Wellness, a registry of local-first wellness MCP connectors.
Withings has the longest-running consumer body-composition and sleep ecosystem (smart scales, Sleep Analyzer, ScanWatch). The data is rich — punctual weight + body fat + muscle mass measurements, sleep stages, ECG-grade heart records — but the Withings Public API uses a signed-token OAuth flow that's heavier than most consumer APIs.
This package handles the signed OAuth dance locally, normalizes responses, and exposes Withings through the Model Context Protocol. Tokens never leave your machine. Privacy-mode defaults keep raw payloads opt-in.
You'll need a Withings app (create one here) with redirect URI http://127.0.0.1:3000/callback.
npx -y withings-mcp-unofficial setup # interactive: paste client id + secret
npx -y withings-mcp-unofficial auth # opens browser, captures the OAuth code
npx -y withings-mcp-unofficial doctor # verifies you're ready
Recommended scopes:
user.activity user.metrics
Then add this to your MCP client config:
{
"mcpServers": {
"withings": {
"command": "npx",
"args": ["-y", "withings-mcp-unofficial"]
}
}
}
For Claude Desktop, run setup --client claude and the snippet is written for you.
Note: Withings OAuth authorization codes are short-lived (a few minutes). Don't pause between approving the consent screen and
withings_exchange_coderunning.
Three things to ask first:
Use withings_connection_status to check setup, then run withings_daily_summary.
Give me a 5-line wellness brief for today.
Call withings_weekly_summary with response_format=json. Identify my biggest
sleep/body bottleneck and give me a next-week plan.
Use the withings_body_sleep_investigation prompt, after=2026-04-01.
Walk me through what changed in body composition + sleep.
This package uses the official Withings Public API. When this README says raw, it means the upstream Withings JSON for a supported endpoint — not raw device sensor streams.
| Data | Available | Notes |
|---|---|---|
| Body measures (weight, fat %, muscle, bone, water) | ✓ | Requires user.metrics scope |
| Daily activity (steps, calories, distance, intensity) | ✓ | Requires user.activity scope |
| Workouts + sport metadata | ✓ | Requires user.activity scope |
| Sleep summaries (duration, stages, efficiency, HR) | ✓ | Requires user.activity scope |
| Sleep detail records | ✓ | When the device exposes them |
| Heart records (ECG, BP, etc.) | ✓ | Requires user.metrics scope; varies by device/plan |
| Continuous sensor telemetry | — | Not exposed by Withings Public API |
Start with these:
withings_connection_status — verify local setup before calling Withingswithings_daily_summary — body, sleep, activity and heart brief for todaywithings_weekly_summary — scorecard, comparison vs prior week, next-week planAuth & diagnostics
withings_capabilities, withings_agent_manifest, withings_privacy_audit, withings_cache_statuswithings_get_auth_url, withings_exchange_code, withings_revoke_accessBody & metrics
withings_list_body_measures — punctual weight/composition recordswithings_list_heart — heart records when device/plan permitActivity
withings_list_activity — daily activity summarieswithings_list_workouts — logged workoutsSleep
withings_list_sleep_summary — daily sleep summaries with HR/stage fieldswithings_list_sleep — detailed sleep recordswithings_daily_checkin — practical daily health and body check-inwithings_weekly_review — review trends across body, sleep, activitywithings_body_sleep_investigation — investigate body measures + sleep togetherwithings://capabilities, withings://agent-manifestwithings://latest/activity, withings://latest/sleepwithings://summary/daily, withings://summary/weekly~/.withings-mcp/tokens.json with 0600 permissions and are never returned by tools.WITHINGS_PRIVACY_MODE defaults to structured. Raw Withings JSON is opt-in via raw mode or per-call override.withings_revoke_access clears local tokens; full account-side token revocation depends on your Withings plan.setup writes most of these into ~/.withings-mcp/config.json (0600). Manual env override is supported:
WITHINGS_CLIENT_ID=…
WITHINGS_CLIENT_SECRET=…
WITHINGS_REDIRECT_URI=http://127.0.0.1:3000/callback
# Optional
WITHINGS_SCOPES="user.activity user.metrics"
WITHINGS_PRIVACY_MODE=structured # summary | structured | raw
WITHINGS_CACHE=sqlite # optional read-through cache
WITHINGS_TOKEN_PATH=~/.withings-mcp/tokens.json
WITHINGS_CACHE_PATH=~/.withings-mcp/cache.sqlite
npx -y withings-mcp-unofficial setup --client hermes --no-auth
npx -y withings-mcp-unofficial auth # run locally if browser auth is needed
npx -y withings-mcp-unofficial doctor --client hermes
hermes mcp test withings
After Hermes config changes, use /reload-mcp or hermes mcp test withings. Don't restart the gateway for normal data access.
If browser OAuth has to happen on a different machine than Hermes, run auth locally and copy ~/.withings-mcp/tokens.json to the server with chmod 600.
http://127.0.0.1:3000/callbackgit clone https://github.com/davidmosiah/withingsmcp.git
cd withingsmcp
npm install
npm test
npm run build
Test with MCP Inspector:
npx @modelcontextprotocol/inspector node dist/index.js
MIT — see LICENSE.
This software is provided as-is. It is not a medical device, does not provide medical advice, and should not be used for diagnosis or treatment. Withings exposes data that may resemble medical signals (ECG, blood pressure, body composition) — always consult qualified professionals for medical concerns.
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