Set up Endurance Signals in about ten minutes.

For athletes

1. Accept your invitation. Your club or coach sends an email invitation. Set a password and accept the privacy terms.
2. Create an intervals.icu account. intervals.icu is a free training-data hub. In its Settings, link your device platform (Garmin, Whoop, Strava, Wahoo, Polar, COROS and others). Past activities and daily wellness fill in automatically.
3. Connect intervals.icu to Endurance Signals. Copy your personal API key from intervals.icu (Settings, Developer) and paste it into Endurance Signals. It is a private key, not your password.
4. Record morning HRV. Take a reading on waking, the same way each day, on your watch, strap or HRV app synced to intervals.icu. Analysis starts once a few weeks of history are in.
5. Do the daily check-in. A one-minute questionnaire each morning. It tells your coach about illness, pain or poor sleep before they show up in the data.
6. Choose your plan. Follow your club's plan as written, use Adjust for me to fit it to your week, or train your own way. Planned sessions are pushed to intervals.icu and on to your watch.

For coaches and clubs

1. Request access. The platform is in a closed trial; request a place for your club or squad.
2. Load your plan. Upload your training block as a structured file, or extract it from PDFs or TrainingPeaks with AI. Mark your club sessions, such as the Monday swim.
3. Invite athletes. Each athlete connects their own data. Group them by plan, such as rolling, 70.3 or Ironman.
4. Push and review. Push the block to athletes' calendars, then work from the daily list of flags.

What data is used

Activities, HRV and resting heart rate from intervals.icu or Garmin, the morning check-in, and the plan. Athletes choose what is shared beyond their coach. See the privacy policy.

New to the terms? Start with the glossary.