Suunto + Claude / ChatGPT

Your Suunto training, in Claude and ChatGPT

OpenAthlete syncs your Suunto activities, sleep and HRV through Suunto's official API. Connect it to Claude or ChatGPT, ask about your training, and have the assistant plan sessions that reach your watch as Suunto guides.

Create a free account How it works

Free on every plan
OAuth, no password shared
Claude, ChatGPT, any MCP client

Example conversation

Saturday is 3 × 15' at marathon pace. Do my last two long runs say I'm ready, or should I trim it?

Your 28 and 30 km long runs held 5:05/km with heart rate in zone 2 until km 24, and you noted “legs fine” after both. Saturday looks right. I'd only take 5' easy between blocks instead of 3'. Shall I update it? It will reach your Race S as a guide.get_activities · get_activity · get_session

Claude · OpenAthlete MCP · Suunto data

How it works

Three steps, about five minutes

Connect Suunto to OpenAthlete

Create a free account, open Settings › Integrations and sign in with Suunto on its own authorisation page. OpenAthlete receives a token, never your password.

Suunto connection guide

Add OpenAthlete to Claude or ChatGPT

In Claude, add a custom connector; in ChatGPT, turn on developer mode and create a connector. Paste the address below and approve on the OpenAthlete page.

https://api.openathlete.org/mcp

Claude guide ChatGPT guide The MCP server

Ask

Write as you would to a coach. The assistant calls the tools it needs, shows which ones, and asks before it changes your calendar.

Two official sign-ins, no password handed over

The community Suunto MCP servers we looked at have you register your own app on Suunto's developer portal and wait weeks for approval. OpenAthlete already has access to Suunto's API: you sign in with Suunto and OpenAthlete receives a token.

What the AI sees

What your assistant reads and writes, from Suunto

The assistant never talks to Suunto directly. It works on what OpenAthlete has synced, through 23 MCP tools.

sync

OpenAthlete

MCP

Claude · ChatGPT

Planned sessions go back to the watch

Activities: Every new activity, with laps, as soon as Suunto notifies OpenAthlete
History on connection: The last 30 days
Sleep, HRV, wellness: Sleep stages and score, HRV, daily heart rate, SpO2, steps, calories, naps, body resources
Training load and form: Computed by OpenAthlete from heart rate (TRIMP): fitness, fatigue and form, projected over the sessions to come
Plan in the calendar: Yes: up to 60 sessions per request, with structured steps and targets from your zones, % of VMA, FTP or HR max
Send workouts to Suunto: Yes, as Suunto guides: running, trail running, cycling, swimming and more

Metric import is off by default: turn on “Import metrics” for Suunto in OpenAthlete.

Ask it

What Suunto users ask

Under each prompt, the OpenAthlete tools the assistant calls to answer it.

“Sleep score under 60 three nights this week. Show me the trend and move my intervals if needed.”

get_metrics→get_calendar→move_sessions

“Plan an 8-week build to a sub-3 marathon from my current records. Long runs on Sundays, intervals on Tuesdays, on my Suunto.”

get_athlete_context→get_records→plan_sessions

“How has my weekly running volume compared with my cycling since August?”

get_training_volume

“I'm in Chamonix next week with only my running shoes. Turn the bike sessions into runs.”

get_calendar→update_session

“Which of my last ten runs were planned sessions I actually hit, and which did I cut short?”

get_calendar→get_activities

Side by side

Suunto's own AI and MCP, and OpenAthlete

What each one does, checked on 3 November 2026. Nothing stops you from using both.

From Suunto

Suunto AI Coach, in the Suunto app since 15 October 2026: conversation over your Suunto data, structured workouts and routes. It launched with the Race 3S (three months included) and reaches more watches in early 2027.
Suunto's Chinese site documents a read-only MCP server (mcp.suunto.cn). We found no equivalent documented for the global Suunto app.
Community MCP servers exist; they need your own app on Suunto's developer portal.

OpenAthlete MCP server

Claude, ChatGPT, Cursor or any MCP client, on the AI plan you already have
Plans sessions in your calendar; they reach your watch as Suunto guides.
Every device in one history: Garmin, COROS, Suunto, Polar and FIT files, with training load and form
Free, open source (AGPL), self-hostable. Your coach can work on your calendar through the same server.

Suunto AI Coach lives in the Suunto app. OpenAthlete is for when you want Claude or ChatGPT, other devices in the same history, or a calendar shared with a coach.

Questions about Suunto and AI

Suunto's Chinese site documents a read-only one (mcp.suunto.cn). We found none documented for the global Suunto app on 3 November 2026. Suunto's own assistant, Suunto AI Coach, lives inside the Suunto app.

Through OpenAthlete, yes. The assistant plans the session in your OpenAthlete calendar. With workout export on, it is sent to Suunto as a guide and shows up on the watch once the Suunto app has synced.

No. Suunto AI Coach is Suunto's assistant inside the Suunto app. OpenAthlete lets the assistant you already use, Claude or ChatGPT, work on your Suunto data alongside other devices and a coach. You can use both.

The last 30 days when you connect, then every new activity. Upload older FIT files to fill the gap.

No. The MCP server is free on every OpenAthlete plan, Free included. The model runs on your Claude or ChatGPT account, so their plan limits apply. Supporter (€5 a month) only covers the AI features inside OpenAthlete and unlimited coached athletes.

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