Is there a Polar connector for Muse?

Not from Polar. Memory.fit is a hosted MCP server: connect Polar in the Memory.fit app, add one Memory.fit address to Muse, and Muse reads it.

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+.

Does it work outside the US?

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

Is my Polar data safe?

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 Polar at any time.

Where do I paste the Memory.fit key?

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

Can Muse send a workout to my Polar watch?

No. Memory.fit reads Polar and sends nothing to it, so a session Muse plans shows on Plan in the Memory.fit app, not on your watch.

Connect Polar to Muse

Yes. Connect Polar in the Memory.fit app, add one Memory.fit address to Muse, and Muse reads your training sessions, sleep, HRV and Nightly Recharge.

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

What Muse needs: US only, 18+.

Connect Polar to Muse: the title card of the how-to video

1:09 · On YouTube soon

The whole setup in 1:09. The chats in it are examples: Muse's answers depend on your data.

0:00Connect Polar in Memory.fit
0:20Add Memory.fit to Muse
0:41Ask Muse and plan around your recovery

The address to add to Muse

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

Get it onGoogle Play

Set it up

What it reads

What Muse reads from Polar

Directly from Polar: you sign in with Polar in the Memory.fit app.

Polar shares the last 30 days of history.

Training sessions
Sleep
HRV and Nightly Recharge
Daily activity

The tools that read it:get_workoutsget_sleepget_daily_metricsget_training_loadget_session_complianceget_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: Polar takes no workouts from Memory.fit, so a session Muse plans lands in Memory.fit's Plan, around your Nightly Recharge.

Setup

Set up Polar in Muse

1. Polar in the Memory.fit app

01In the Memory.fit app, open Settings → Health data.
02Tap Connect next to Polar.
03Sign in with your Polar account and accept the data sharing consents.
04Your last 30 days come in first; new sessions arrive as Polar syncs.

2. Memory.fit in Muse

MuseUS only · 18+

01In the Memory.fit app, open Settings → AI agents → Muse and create your key.
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.”
03Paste your Memory.fit address when Muse asks.
04Paste your key into Muse’s secure credentials prompt, never into the chat.

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

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

Every step for Muse

Other routes

Polar in Muse without Memory.fit

Polar has no official route to Muse.

Try it

Ask Muse about your Polar data

“Read my Nightly Recharge for the last two weeks and tell me which nights I recovered worst.”

MuseExample

The worst three were Monday, Thursday and last Saturday, all rated poor. Your ANS charge sat between −5 and −7 on those nights, after your three hardest sessions of the fortnight.

From the video. Answers depend on your data.

Uses:get_daily_metricsget_sleep

“Compare my training load this month with last month.”

Uses:get_training_load

“How did my sleep change on the nights after my hard sessions?”

Uses:get_sleepget_workouts

“Move tomorrow's threshold run if my Nightly Recharge is poor, and tell me why.”

MuseExample

Your Nightly Recharge was poor last night, so I moved the threshold run to Saturday and made Thursday an easy 40 min run. You'll see it on your Plan.

From the video. Answers depend on your data.

Uses:get_daily_metricsmove_sessionplan_session

Limits

Limits, said plainly

Polar shares the last 30 days of history, so older sessions don't come in.
Accept Polar's data sharing consents when you connect, or Polar shares nothing.
Memory.fit reads Polar and sends nothing to it.
Polar shares the last 30 days of history.
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.
Your AI's own subscription is separate from Memory.fit's.

Questions

Polar in Muse, in short.

Not from Polar. Memory.fit is a hosted MCP server: connect Polar in the Memory.fit app, add one Memory.fit address to Muse, and Muse reads it.
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 Polar 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.
No. Memory.fit reads Polar and sends nothing to it, so a session Muse plans shows on Plan in the Memory.fit app, not on your watch.

Your next chapter starts with everything you've learned.

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