Connect Apple Watch to Muse

Soon. It needs the Memory.fit iPhone app, which is coming soon. Once it is out, connect Apple Watch there, add one Memory.fit address to Muse, and Muse reads your workouts, sleep and sleep stages, HRV and resting heart rate.

Muse can also write your plans back to Memory.fit, where you see them in the app.

What Muse needs: US only, 18+.

Connect Apple Watch to Muse: the title card of the how-to video1:17 · On YouTube soon

The whole setup in 1:17. The chats in it are examples: Muse's answers depend on your data.

  1. 0:00Connect Apple Watch in Memory.fit
  2. 0:27Add Memory.fit to Muse
  3. 0:48Ask Muse and send a session to your Apple Watch

The address to add to Muse

https://api.memory.fit/mcp?src=mcp-apple-watch-muse

What it reads

What Muse reads from Apple Watch

Through Apple Health on your iPhone: the Memory.fit iPhone app reads what your watch records, and puts the sessions your AI plans in the Workout app.

The first sync reads up to 90 days back.

  • Workouts with heart rate, pace and power
  • Sleep and sleep stages
  • HRV and resting heart rate
  • VO2 max and steps

Only what your watch saves to Apple Health comes through.

The tools that read it:get_workoutsget_sleepget_daily_metricsget_trendsget_source_data

What it can do

What Muse can do with it

Plans written back
Yes. Muse plans sessions from your real training and writes them into Memory.fit's Plan.
Where it runs
The Muse app, muse.ai and WhatsApp. Meta does not say connectors work in WhatsApp, so check first.
Good to know
Apple's Workout app takes custom workouts for every type except multisport and open water swims, so the swims Muse plans reach your watch as pool swims, from iOS 18.

Setup

Set up Apple Watch in Muse

1. Apple Watch in the Memory.fit app

  1. 01In the Memory.fit app on your iPhone, open Settings → Health data.
  2. 02Tap Connect next to Apple Health, choose what Memory.fit may read and tap Allow.
  3. 03Your watch's workouts and nights come in through Apple Health.

The Memory.fit iPhone app is not on the App Store yet. Join the waitlist and we'll tell you the day it is.

2. Memory.fit in Muse

MuseUS only · 18+
  1. 01In the Memory.fit app, open Settings → AI agents → Muse and create your key.
  2. 02In a Muse chat, say: “Add a custom connector called Memory.fit. Its address is the link I’ll paste, and it needs a key.”
  3. 03Paste your Memory.fit address when Muse asks.
  4. 04Paste your key into Muse’s secure credentials prompt, never into the chat.

The address: https://api.memory.fit/mcp?src=mcp-apple-watch-muse

Muse connects with a key from the Memory.fit app. Paste it into Muse's settings, never into a chat.

Other routes

Apple Watch in Muse without Memory.fit

Apple has no official route from Apple Watch to Muse.

Try it

Ask Muse about your Apple Watch data

“Read my Apple Watch runs from the last six weeks and my sleep, and tell me if I'm ready to build.”

Uses:get_workoutsget_sleepget_trends

“How have my resting heart rate and VO2 max moved over the last two months?”

MuseExample
Your resting heart rate eased from 56 to 52 bpm. VO2 max held at 48 for six weeks, then rose to 50 after your longer runs.

From the video. Answers depend on your data.

Uses:get_daily_metricsget_trends

“Build a 5 x 4 min tempo run for Thursday at my threshold pace and put it on my Apple Watch.”

MuseExample
I built Thursday's tempo run: an easy start, 5 x 4 min at 4:20 /km with 2 min jogs, an easy finish. It goes to the Workout app when you next open Memory.fit on your iPhone.

From the video. Answers depend on your data.

Uses:plan_sessionset_session_structure

Limits

Limits, said plainly

  • Only what your watch writes to Apple Health comes through.
  • Sessions reach your watch on iOS 17 or later; swims need iOS 18.
  • Memory.fit keeps the next 7 days on your watch, brought up to date when you open the app.
  • Your AI's own subscription is separate from Memory.fit's.
  • The first sync reads up to 90 days back.
  • Muse is available in the US only.
  • Muse connects with a key from the Memory.fit app. Paste it where Muse asks for it, never into a chat.

Questions

Apple Watch in Muse, in short.

  • Not from Apple. Memory.fit is a hosted MCP server: Apple Watch shares with Apple Health, the Memory.fit app reads it, and Muse reads it through one Memory.fit address.

  • Memory.fit is $9 a month or $69 a year, with 7 days free, for every device and every AI you connect. Muse has its own requirements: US only, 18+.

  • Not yet: Muse itself is available in the US only. Memory.fit works in every country, with every AI that takes a custom connector.

  • Muse gets only the permissions you allow, every change shows in the Memory.fit app with who made it, and you can disconnect Muse or Apple Watch at any time.

  • Into Muse's secure credentials prompt, never into the chat. In the Memory.fit app, Settings › AI agents › Muse › Copy my key copies it.

  • Structured runs, rides and swims. Strength sessions stay in the Memory.fit app, and a session without steps isn't sent.

Your next chapter starts with everything you've learned.

On Android now. iPhone is coming: join the waitlist and we'll email you the day Memory.fit is on the App Store.

No spam. One email when it's ready.

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