Your AI as a
training analyst.
This is not a coach. An analyst reads, compares and explains your own training data when you ask. IntervalSync does not plan your training. If you ask your assistant for a session, that is its suggestion, and the decisions are yours.
With IntervalSync connected, the AI assistant you already use (Claude, ChatGPT, Gemini, Grok or another) can read your Intervals.icu training when you ask about it. This page is about what it can read, which questions have answers you can trust, how to ask them, and where the answers stop.
Your training, at the detail a question needs.
- Completed activities, with their summaries, interval-by-interval statistics and per-second streams of power, heart rate, cadence and more.
- Steady efforts found in a ride's power trace, and climbs found in its elevation trace, with gradient and VAM.
- Weekly, monthly and total distance, time, load, elevation and time in each zone.
- Wellness records: sleep, resting heart rate, HRV, fatigue and notes.
- Planned workouts on your calendar, and each sport's zones and thresholds.
- The goal, events, constraints, preferences and notes you saved for your assistants.
It reads them from Intervals.icu when you ask, one question at a time. The MCP server page lists every tool.
What it can answer, and what each answer needs.
- Is this number real, or is my power meter lying? Stuck readings and dropouts hide inside an average; cadence is what tells them from riding.
- Which climb was steepest, and where was my VAM best? Every climb in a ride, found from its elevation trace, and what VAM can fairly compare.
- The same interval, eight weeks apart. One labelled block followed across weeks, and how much change is only noise.
- A trainer ride that arrived as one long interval. The reps recovered from the power trace.
- Your decoupling improved. It might just be block length. Why a longer block reads better whatever your fitness did.
Questions with no chart has more, each with its limit.
Ask for a comparison it can refuse.
- Give a date range and a decision. "Compare the last eight weeks with the same weeks last year" can be answered; "how is my training?" can only be guessed at.
- Ask it to check that things are comparable first. The same label, a similar duration, a similar intensity, and sound data. And tell it to say so, rather than report a number, when they are not.
- Ask for its working. Which activities it used, which it left out and why, and what the result does and does not support.
Prompts & charts has questions written this way.
The limits worth knowing before you rely on a number.
- The assistant writes its own answer. IntervalSync gives it your data and does not check what it says.
- Arithmetic does not know what is comparable. An assistant will compute a metric on two efforts that cannot be compared and describe the result with confidence.
- One file cannot show everything. A power meter that reads a few percent high looks like any other, and a stuck reading on a ride without cadence passes unseen.
- Training data does not record why. Fatigue, illness, heat and a bad night are not in it, so a trend can be fitness or a cooler month.
Reviews you can ask for.
IntervalSync describes six reviews your assistant can follow when you ask for one: a weekly review, a 42- and 90-day progress check, a block, one ride, readiness, and an event. Each sets out what it looks at, whichever assistant you ask.
Tell every assistant once.
Your goal, events, constraints, preferences and notes can be saved once, in your words, when you ask your assistant to save them. Every assistant you connect can read them, and you can see and remove any of it in your IntervalSync portal.
A coach, or the people you train with.
An analyst is no substitute for a coach. If you work with one, you can let their assistant read your training, read-only and by your own permission, on their Coach plan. People who train together can form a team and read each other's training, each choosing what of theirs is read. Coach plans and Pro Team says what is shared and by whose agreement, and pricing says what each plan includes.
One address, in the assistant you use.
Add the server address to your assistant once, and sign in with your Intervals.icu account: ChatGPT, Claude, Gemini or Grok. If you would rather run a server yourself, self-hosted or hosted compares the two.
Whether your assistant's plan allows a custom server is up to its maker; each guide says, and the MCP server page lists them side by side.
Your training data is read, not stored.
Training records are read from Intervals.icu when your assistant asks, and are not stored. Besides your account and plan details, IntervalSync keeps your encrypted Intervals.icu credential, a short record of each request, and what you asked it to save. The privacy policy has the rest.
Resources · The Intervals.icu MCP server · Connect your training