Talk to Claude AI about your training calendar
IcuSync connects Claude, Anthropic's AI assistant, to your Intervals.icu calendar. Ask questions about your data, build structured workouts, and push them straight to your watch. All without leaving the conversation.
Works with Claude on web, mobile, and desktop.
Requires a free Intervals.icu account.
Run
Ride
SwimWhat it does
Three things IcuSync handles for you
Read your training data
Ask Claude anything about your recent sessions, fitness trends, fatigue, or weekly load. It reads directly from your Intervals.icu account.
Build structured workouts
Describe what you need and Claude writes it using your zones, threshold pace, or power targets. Review it then push it to your calendar.
Sync to your watch
Workouts land on your Intervals.icu calendar and auto-sync to Garmin, Coros, Wahoo, Polar, Suunto and other connected devices.
How it works
Up and running in four steps
Sign up
Create your IcuSync account and subscribe for $20.00 USD / year.
Intervals.icu is free
Connect Intervals.icu
Connect your Intervals.icu account to IcuSync with one click using OAuth.
Connect Claude
Add IcuSync to Claude using the MCP URL on any Claude plan including free, or the desktop extension on Claude Desktop.
Start talking
Open Claude and ask about your training. IcuSync handles the rest.
View training promptsNew to Intervals.icu?
A free training platform built for athletes who want their data
If you currently use Strava or TrainingPeaks, Intervals.icu is a free alternative that gives you advanced fitness metrics, zone analysis, structured workout scheduling, and automatic sync to your devices.
It is what IcuSync is built on. You need a free Intervals.icu account to use IcuSync, setting one up takes about five minutes. Sign up for Intervals.icu here.
New to Intervals.icu? Find out moreHow it connects
FREE TEMPLATE
A Notion workspace for self-coached athletes
A free Notion template built to work alongside Claude and IcuSync. Includes a training log, weekly review, plan builder, and a prompt reference all in one workspace.
No email required. Click to duplicate into your own Notion account.
Get the free templateRequires a free Notion account.
Built for runners, but easily adapted. Just ask Claude to swap running for cycling, swimming, rowing, or any other sport.
Pricing
One plan. Everything included.
- ✓Full read and write access to your Intervals.icu calendar
- ✓
All twelve Claude tools (grouped):
8 grouped rows covering all 12 tools.
- History and activity detail
- Fitness, fatigue, and form
- Wellness data and athlete profile
- Power curves and training zones
- Best efforts
- Calendar events
- Push, edit, and delete workouts
- Extended metrics and sensor data
- ✓Works on Claude web, mobile, and desktop via the MCP URL (any Claude plan including free) or Claude Desktop via extension installer
- ✓Invite your coach to view your training data in Claude, no IcuSync account needed on their end
- ✓Free Notion training template included
Charged in USD. Your bank may apply a conversion fee. Australian customers will be charged an additional 10% GST at checkout.
From the community
What athletes are saying
Real feedback from the Intervals.icu community forum
"I've been using your app for a while now and honestly love it. Makes training so much more manageable."
Marcel
Intervals.icu forum
"Working really well. Claude can access my wellness data (sleep and HRV) that Intervals pulls from my Garmin watch. I always ask for sources and was pleased to see the plan drawing on Coggan and Friel."
Dave
Intervals.icu forum
"Been using this for the last couple of days. Really helpful to be able to use on my iPhone. I had a workflow with Claude Cowork but this is much easier!"
Shan
Intervals.icu forum
"Looks good and works as expected! Used it to analyse my last workouts. I'm currently in the middle of a training plan, so it will come in really handy."
Jeriko
Intervals.icu forum
"This is much easier than uploading fit files after my runs."
Tim
Intervals.icu forum
"Really impressed. So useful to be able to just ask Claude to analyse my data from anywhere. I've used your Notion template too. Just told Claude to ignore anything related to running or races so I can use it as a training journal with Claude analysis."
James
Intervals.icu forum