Your Ultrahuman Ring tracks your sleep, recovery, and movement every day, and an M1 sensor adds your glucose, but the AI assistant you talk to every day cannot see any of it. The Model Context Protocol (MCP) is the open standard that connects the two, and five options work for Ultrahuman today.
This list ranks them by setup effort, from least to most. freddy is ours, and it is first: nothing to install, no token to paste, M1 glucose included, and it works in any AI app that speaks MCP. Each entry says who it suits.
What to know first
Ultrahuman offers two official ways in, both on its developer page: an OAuth sign-in for apps, and a personal API token for your own data. Hosted services use the sign-in, so you only approve access on Ultrahuman's screen. A server you run yourself uses a token, and Ultrahuman's API agreement says not to share it with anyone else, so never paste it into someone else's website.
The second question is glucose. If you wear an M1 sensor, check that the tool reads it: not every one does.
Ultrahuman's own AI, Jade, works inside the Ultrahuman app only. Ultrahuman ships no MCP server of its own.
Where a server runs decides where you can use it. A hosted server is a web address, so it works in Claude and ChatGPT on the web, on the desktop, and on your phone. A server on your computer works only in desktop apps such as Claude Desktop and Cursor. The Claude phone app and claude.ai cannot reach it, and ChatGPT needs a tunnel you set up yourself.
The list
1. freddy
freddy is a hosted MCP server that brings your health data from all your apps into one place. You sign in with a code we email you, connect Ultrahuman on Ultrahuman's own sign-in screen, and add freddy to your AI app, from ChatGPT's app directory or with one personal URL in Claude, Cursor, or any other MCP client.
freddy reads your ring's sleep, recovery, heart rate, HRV, temperature, and movement, plus M1 glucose, with your history. Ultrahuman does not push updates, so freddy checks for new data on a schedule, and a night's numbers fill in after you wake and your ring syncs. The same account reads Garmin, Oura, Polar, Apple Health, and more.
Our Ultrahuman guide walks through every step.
Setup: three steps in your browser. Nothing to install, nothing to update, and it works on your phone too.
Price: free for one source with a short history window, or $49/year for all your sources and your full history.
Best for: almost everyone with an Ultrahuman Ring, and especially M1 wearers.
2. Wellness Project
Wellness Project is a hosted coaching app with its own MCP server. It signs in to Ultrahuman directly, reads ring data and M1 glucose, and its server lists 73 tools, some of which write to Wellness Project, never to Ultrahuman.
The free plan allows 3 analysis chats a day, with the app and your AI app counted together.
Setup: create an account, authorize Ultrahuman in its settings, then add its MCP address to your AI app and sign in.
Price: a free Basic plan. Pro is $9.99 a month or $99.99 a year, with an introductory $4.99 a month or $39.99 a year until October 15 (pricing).
Best for: people who want a coaching app alongside their AI assistant.
3. AthleteData
AthleteData is a hosted AI coach with a cheaper MCP-only plan. It signs in to Ultrahuman for your ring data, next to more than 30 other apps, but it does not read M1 glucose. The coaching plan messages you after workouts; the MCP-only plan leaves that out.
Setup: start the trial, connect Ultrahuman, and add the connector to your AI app.
Price: MCP-only is CHF 9 a month or CHF 69 a year, after a 7-day free trial (plans). Coaching is CHF 29.90 a month.
Best for: athletes who want a coach that gets in touch first, and do not need glucose.
4. Fulcra Context, through Apple Health
Fulcra Context is a personal data store with a hosted MCP server. Its iPhone app reads Apple Health, and the Ultrahuman app writes HRV, temperature, energy, and M1 glucose there. Fulcra's pages do not name Ultrahuman; the route works because Fulcra reads what Apple Health holds.
It is iPhone only, and it sees only what Ultrahuman shares with Apple Health.
Setup: moderate. Turn on Apple Health sync in the Ultrahuman app, install Context, allow Apple Health access, then add Fulcra's server to your AI app.
Price: Personal is free. Pro is $14.99 a month or $149.99 a year (pricing).
Best for: iPhone users who want a broader personal data store.
5. Open Wearables
An open-source platform that you run on your own server, with 2,562 stars and an MIT license. It signs in to Ultrahuman with an OAuth app you create on Ultrahuman's developer page, reads ring data and M1 glucose every hour, and includes an MCP server with 6 tools.
Setup: the most work on this list. Run its Docker stack, create your own Ultrahuman OAuth app, put its keys in the config, connect in its dashboard, and set up the MCP server. Desktop apps only.
Price: free software. You pay for the server.
Best for: developers who want several sources on hardware they control.
We left out the small open-source Ultrahuman servers. They call an older Ultrahuman endpoint, and nobody has confirmed that a new personal token works with it. One of them also serves your data on the open web with no sign-in if you deploy it.
| Tool | Setup | M1 glucose | Price |
|---|---|---|---|
| freddy | None; web, desktop, and phone | Yes | Free tier; $49/year |
| Wellness Project | App and connector; web, desktop, and phone | Yes | Free (3 chats a day); Pro $9.99/mo |
| AthleteData | Account; web, desktop, and phone | No | CHF 69/yr or CHF 9/mo |
| Fulcra Context | iPhone app; web, desktop, and phone | Through Apple Health | Free; Pro $14.99/mo |
| Open Wearables | Your own server and OAuth app; desktop only | Yes | Free; you pay for hosting |
How to choose
For most people, the answer is freddy: no token, nothing to keep running, M1 glucose included, and it works in any AI app that speaks MCP, on your phone too. The exceptions:
- You want a coaching app alongside: Wellness Project.
- You want a coach that gets in touch first, and no glucose: AthleteData.
- You want several sources on hardware you control: Open Wearables.
Whatever you pick, keep your Ultrahuman token off other people's websites. Ultrahuman's terms forbid sharing it.
Prices and details verified in September 2026. This space moves fast, so check each vendor's site for current details before you commit. For other wearables, see our roundup of wearable MCP servers.