Intervals.icu
Advanced training analytics with power and performance metrics
What is Intervals.icu?
Intervals.icu is a free, advanced training analytics platform popular with cyclists and triathletes. It provides detailed power analysis, training load tracking, fitness modeling (CTL/ATL/TSB), and race planning tools.
What FitGlue Does
FitGlue connects to your Intervals.icu account via API key and can upload your boosted activities. Your enriched workouts — with AI descriptions, heart rate summaries, and performance metrics — appear in your Intervals.icu calendar for detailed analysis.
Features
- ✅ Upload boosted activities to Intervals.icu automatically
- ✅ Power, heart rate, and GPS data included
- ✅ FIT files uploaded for full data fidelity
- ✅ Simple API key setup — no OAuth required
- ✅ Works with all FitGlue boosters
How to Connect
Intervals.icu
Go to and log in
Settings
Navigate to →
Generate API Key
Click and copy the key
Athlete ID
Find your in the URL: intervals.icu/athlete//calendar
FitGlue Dashboard
Enter both values in your
Privacy & Security
Your connection is secured with industry-standard encryption. Your API key is encrypted and stored securely. You can regenerate or revoke your key at any time from the Intervals.icu settings.