MCP connector

Kracey MCP Connector

The Kracey MCP connector lets an AI assistant read your own Kracey training data, so you can ask Claude about your sessions, best efforts, race predictions and HYROX splits, and your heart rate and recovery if you choose to share them. It is free and read-only, and it runs no AI model of its own: every answer is a lookup or a calculation.

Before You Connect

You need a Kracey account. Signing in is part of connecting.
To read your training, connect intervals.icu under Settings. The calculators and the race finder work without it.
You do not need a Kracey subscription.

Connect from Claude

The address:

https://mcp.kracey.com/mcp

Claude on the Web or Desktop

In Claude, open Customize, then Connectors.
Choose Add custom connector and paste the address.
Choose Add, then Connect.
Sign in to Kracey, choose what Claude may read, and choose Allow.

Claude Code

claude mcp add --transport http kracey https://mcp.kracey.com/mcp

Then run /mcp, pick kracey and sign in.

Connect from ChatGPT

ChatGPT is one of the assistants Kracey accepts, and it is limited to training data: it is never offered your heart and recovery data. Step-by-step instructions for ChatGPT will be added to this page when Kracey's ChatGPT listing is published.

What You Grant: Scopes

When you connect, the Kracey consent screen shows what the assistant will receive. There are two kinds of data:

Scope	What it covers
Training	Sessions & laps, pace, distance & volume, best efforts & predictions, HYROX results & plan. The plan is there if you have a coach plan. Every connection includes it.
Heart and recovery data	Heart rate & HR zones, VO2max, load & fitness, effort ratings, sleep, HRV & resting HR. A separate tick on the consent screen, off until you tick it. Offered to Claude and Claude Code only.

Both count as health data, so choosing Allow is your explicit consent to share them with that assistant. What happens to them inside it is in the privacy policy.

The connection also asks to stay signed in, so your assistant does not ask you to log in again every hour. That is not data.

Never shared, by any scope: your conversations with the coach, what the coach remembers about you, and anything you told it about an injury or illness.

Only Claude, Claude Code and ChatGPT can connect. Any other client is refused before it can ask you anything. ChatGPT can never receive heart and recovery data.

What It Reads, and What It Changes

It reads the signed-in account's own data, and only that account's. No tool takes another person's name or account.

It changes nothing: Every tool is read-only. Building a plan, changing it and race week preparation are listed as tools, and each one answers that it needs the Kracey coach.

Every tool, with what it returns and the scope it needs, is in the tools reference.

How Your Data Is Handled

What your assistant reads leaves Kracey: From there, that assistant handles it under its own terms.
A copy is kept for 15 minutes, so several questions in a row do not each fetch your training from intervals.icu again.
Strava-synced sessions are left out: Strava's API terms do not allow serving its data to AI tools. Sync your watch to intervals.icu directly and those sessions are included.
Garmin sessions are marked, so your assistant can credit Garmin.
Access is short-lived: An access token lasts an hour and is renewed while you use the connection. Tokens are stored hashed.
You can disconnect at any time under Connected assistants in Settings. It stops working at once.
Deleting your Kracey account ends every assistant connection along with everything else.
Kracey never sells your data and never uses it to train AI models. See the security page and the privacy policy.

Limits

Limit	Value
Sessions	The last 90 days
Best running efforts	The last year
Saved HYROX results	Your 10 most recent
Coach plan	Today and the next two weeks, as the shape of each session (the written session stays in Kracey)
Requests	60 a minute per account. Past that, wait a minute
Staying connected	A connection not used for 30 days ends, and you connect again from your assistant

Troubleshooting

Your assistant says	What to do
No training data is connected to this Kracey account yet. Connect intervals.icu at kracey.com/me.	Connect intervals.icu under Settings.
Kracey can no longer read this account's training from intervals.icu. Reconnect it at kracey.com/me/settings.	Reconnect intervals.icu under Settings.
intervals.icu did not answer just now. Try again in a minute.	intervals.icu is briefly unavailable. Ask again in a minute.
This athlete has not shared heart and recovery data with this assistant.	Disconnect the assistant under Connected assistants, connect again and tick Heart and recovery data on the consent screen. Claude only.
No HYROX result is saved on this Kracey account yet.	HYROX results are saved by pasting them from results.hyrox.com into your Kracey coach chat in Telegram.
This account has no coach plan right now.	The plan tool needs a Kracey coach plan.
It asks you to sign in again	The connection was not used for 30 days. Connect again from your assistant.
A session is missing	Check it is in intervals.icu, from the last 90 days, and not synced through Strava.

Support

Write to hello@kracey.com. A person reads it and answers within three business days. If you found a security problem, say so in the subject, and please do not post it in public first. More on the support page.

Publisher

The Kracey MCP connector is published by Post & Media.