Your Suunto watch records your runs, rides, dives, and daily recovery, and 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 nine options now do it for Suunto.
This list ranks them by setup effort, from least to most. freddy is ours, and it is first: nothing to install, and Suunto next to your other apps in any AI app that speaks MCP. Each entry says who it suits.
What to know first
The question that sorts Suunto options is simple: does the tool connect to Suunto for you, or do you set up the connection yourself?
Suunto also syncs your workouts to partner platforms, which opens indirect routes: Suunto to Intervals.icu, then an Intervals.icu MCP server. Those routes carry what the partner imports.
One tool on this list signs in with your Suunto email and password through the private API behind the Suunto app. It can stop working at any time, so use it with care.
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 Suunto on Suunto's own sign-in screen, and add freddy to your AI app, from Claude's connector directory or ChatGPT's Plugin Directory, or with one personal URL in Cursor or any other MCP client.
freddy connects to Suunto directly, so there is nothing to apply for. New workouts arrive by push soon after your watch syncs, and your history comes with them. The same account reads Garmin, Oura, Polar, Apple Health, and more, so you can ask across all of them.
Our Suunto 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 a Suunto watch, and especially people who use more than one app.
2. Tredict
Tredict is an endurance training platform with its own MCP server and ChatGPT plugin. It imports Suunto workouts, nightly HRV, and sleep, up to 2 years back, and from the chat it can build a training plan in Tredict.
It works best if Tredict is already your training log, and its MCP server needs Tredict's paid access for detailed data.
Setup: create a Tredict account, connect Suunto, then add Tredict to your AI app.
Price: 2 months free, then $49 for 12 months, paid once (€49 in Europe; prices).
Best for: endurance athletes who already plan their training in Tredict.
3. AthleteData
AthleteData is a hosted AI coach with a cheaper MCP-only plan. It reads Suunto activities, sleep, and daily activity, next to more than 30 other apps. The coaching plan messages you after workouts; the MCP-only plan leaves that out.
Setup: sign up, connect Suunto, then add its connector to your AI app and sign in.
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, as well as answers.
4. STAS, through Intervals.icu
STAS is a free AI coaching layer that reads Intervals.icu, where Suunto syncs your workouts and, since 2025, sleep, HRV, and resting heart rate. It can change your plan in Intervals.icu after you approve the change, and it works as a Claude connector or as a GPT in ChatGPT.
Setup: create a free Intervals.icu account, link Suunto there, sign in to STAS with Intervals.icu, and add its connector.
Price: free.
Best for: athletes who want a free coach on top of Intervals.icu.
5. IcuSync, through Intervals.icu
IcuSync is a paid hosted server for Intervals.icu, with tools that read your data and send planned workouts to your watch. With Suunto linked to Intervals.icu, it reaches your Suunto sessions in Claude on the web, desktop, and phone, and in ChatGPT and Grok.
Setup: create an Intervals.icu account, link Suunto there, sign up for IcuSync, and paste its URL into your AI app.
Price: Intervals.icu is free; IcuSync is $20 a year.
Best for: athletes who already train in Intervals.icu.
6. Intervals.icu with a local MCP server
The do-it-yourself version of the same route: Suunto syncs to Intervals.icu, and hhopke/intervals-icu-mcp reads it from your own computer with 67 tools, MIT licensed. Intervals.icu's personal API key is free.
Setup: moderate. Link Suunto to Intervals.icu, install uv, copy your athlete ID and API key, and add one command to your AI app's config. Desktop apps only.
Price: free and open source.
Best for: people at home in a terminal who want every tool on their own computer.
7. suuntool
A Go command-line tool with a built-in MCP server, read-only by default, MIT licensed, for macOS and Linux. It signs in with your Suunto email and password through the private API behind the Suunto app.
It stops working if Suunto changes that private API.
Setup: moderate. Install it, sign in with your Suunto account, and add its MCP command to your AI app. Desktop apps only.
Price: free and open source.
Best for: technical users who accept that risk for full access.
8. googlarz/suunto-mcp
A TypeScript server on Suunto's official API: about 23 tools, MIT licensed and active, including FIT uploads and SuuntoPlus Guides.
Setup: involved. Get Suunto API access, register an app, clone and build the server, fill in its settings, sign in, and add it to Claude Desktop.
Price: free and open source.
Best for: developers who have their own Suunto API access.
9. Open Wearables
An open-source platform that you run on your own server, with 2,562 stars and an MIT license. It includes an MCP server with 6 tools and covers several other wearables. For Suunto, you use your own Suunto API access.
Setup: the most work on this list. Get Suunto API access, run its Docker stack, add your Suunto keys, and set up the MCP server. Desktop apps only.
Price: free software. You pay for the server.
Best for: developers with Suunto API access who want several sources on hardware they control.
| Tool | Setup | Suunto access | Price |
|---|---|---|---|
| freddy | None; web, desktop, and phone | Official | Free tier; $49/year |
| Tredict | Tredict account; web, desktop, and phone | Official | 2 months free, then $49 per 12 months |
| AthleteData | Account; web, desktop, and phone | Official sign-in | CHF 69/yr or CHF 9/mo |
| STAS | Two accounts; Claude and ChatGPT | Through Intervals.icu | Free |
| IcuSync | Two accounts; web, desktop, and phone | Through Intervals.icu | $20/yr |
| hhopke/intervals-icu-mcp | Terminal and config file; desktop only | Through Intervals.icu | Free |
| suuntool | Terminal; desktop only | Password, private API | Free |
| googlarz/suunto-mcp | Developer setup; desktop only | Official, your own app | Free |
| Open Wearables | Your own server; desktop only | Official, your own app | Free; you pay for hosting |
How to choose
For most people, the answer is freddy: nothing to keep running, and Suunto next to your other apps in any AI app that speaks MCP, on your phone too. The exceptions:
- You already plan your training in Tredict: its own connector.
- You already train in Intervals.icu: STAS for free, or IcuSync.
- You want a coach that gets in touch first: AthleteData.
- You have your own Suunto API access: googlarz/suunto-mcp.
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.