How to Connect COROS to ChatGPT and Claude.ai

Use Intervals.icu’s COROS connection when it is available in your account. Intervals.icu can download completed COROS activities, wellness fields, and upload planned workouts, but you should still verify one real workout and one simple planned session on your exact watch.

• ✓Your COROS watch must already sync correctly to the COROS app or COROS Training Hub.
• ✓You need an Intervals.icu account and access to Settings → Connections.
• ✓Use the same Intervals.icu account when signing in to STAS, ChatGPT, and Claude.ai.
• ✓If you use Strava, keep it for sharing; do not use it as the preferred bridge to STAS when the Intervals.icu COROS connection works for you.

1. 1Sync the COROS watch first. If the workout is missing from COROS, Intervals.icu and STAS cannot see it.
2. 2Open Intervals.icu → Settings → Connections and connect COROS if the COROS connection is available for your account.
3. 3Enable completed activities and the wellness fields you want STAS to use, such as sleep, resting heart rate, and HRV when available.
4. 4If you want watch-ready workouts, enable planned workout upload and add the Intervals.icu training plan in the COROS app if prompted.
5. 5Open Intervals.icu → Activities and verify one recent COROS workout.
6. 6Sign in to STAS with that Intervals.icu account, then use STAS GPT in ChatGPT or the STAS connector in Claude.ai.

Use one real workout as the test. STAS can only analyze fields that reached Intervals.icu.

• ✓Duration, distance, pace, GPS track, elevation, heart rate, running power, cadence, and laps.
• ✓Wellness fields such as sleep, resting HR, and HRV only if they actually appear for your account.
• ✓A second new workout syncing automatically after setup.
• ✓One simple planned workout reaching the COROS calendar before relying on complex key sessions.

• ✓Completed activities with distance, duration, pace, GPS, elevation, heart rate, running power, cadence, laps, and sport type when they reach Intervals.icu.
• ✓Wellness context such as sleep, resting heart rate, and HRV only when those fields are available for your watch/account and visible in Intervals.icu.
• ✓Planning context from Intervals.icu: calendar, upcoming workouts, completed sessions, reports, goals, and your saved STAS rules.
• ✓Approved plan updates written back through Intervals.icu only after you confirm them.

ChatGPT and Claude.ai read the same STAS context. The connection path is different in each AI app.

Intervals.icu supports planned workout upload to COROS, but translation can vary. Test simple run or ride workouts first, then check how targets, repeats, and edits appear in COROS before important sessions.

• ✓Workout push to COROS can be less forgiving than Garmin: moved or edited sessions may need extra checking in COROS.
• ✓Wellness and HRV availability depends on COROS model, firmware, account permissions, and Intervals.icu support.
• ✓STAS does not infer missing lap, power, or HR data. Verify the exact fields in Intervals.icu.

Strava’s official MCP connector is useful for read-only questions about Strava history in Claude. STAS is different: it works from Intervals.icu plus your saved profile, goals, rules, workout details, reports, calendar, and approved plan write-back.

• ✓Use the Strava connector when the question is mainly about Strava history.
• ✓Use STAS when you want ChatGPT or Claude.ai to coach from Intervals.icu and your saved training context.
• ✓For STAS quality, use the Intervals.icu COROS connection when it works for your account. Strava-routed activities may hide pace, HR, power, laps, or intervals.

• ✓If the COROS workout is missing in ChatGPT or Claude.ai, first check whether it is visible in Intervals.icu.
• ✓If Intervals.icu does not show power, HR, laps, or GPS, fix the COROS → Intervals.icu connection before asking STAS to analyze the session.
• ✓If planned workouts do not appear in COROS, verify the Intervals.icu planned workout upload setting and test one simple session.
• ✓If Claude does not see STAS tools, reopen the chat and make sure the STAS connector is enabled for that chat.

This page follows Intervals.icu’s COROS direct support notes and STAS Intervals-first setup rules. Verify exact activity and planned-workout behavior in your own Intervals.icu account.