Use Heart Rate Zones with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Calculate personalized aerobic training zones using the Karvonen formula.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Heart Rate Zones capability set.
These are the exact actions your AI can choose when you ask it to work with Heart Rate Zones.
01-03
3 capabilities in this set.
Part of 3 available through Heart Rate Zones.
- 01
Calculate zone ranges
Calculate the BPM boundaries for all five training zones
- 02
Get zone definitions
Retrieve standard intensity descriptions for heart rate zones
- 03
Calculate heart rate reserve
Calculate the Heart Rate Reserve (HRR)
Observed, not estimated
649ms average. Fast in production.
Heart Rate Zones is checked daily against the live service.
- Fastest day
- 501ms
- Slowest day
- 794ms
- 14-day trend
- Slowing+10%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Heart Rate Zones, so you can see the experience inside your AI.
It does not authenticate your account with Heart Rate Zones. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Heart Rate Zones Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_C0eU1jdnyqxiorF17BV3MSWvfZTB48ZEuwuvArv1/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Heart Rate Zones capabilities are ready to use.
{
"mcpServers": {
"heart-rate-zones-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_C0eU1jdnyqxiorF17BV3MSWvfZTB48ZEuwuvArv1/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
FAQ
Questions Heart Rate Zones owners ask.
- 01
What is the Karvonen formula?
The Karvonen formula calculates Target Heart Rate (THR) by using your Heart Rate Reserve (HRR), which accounts for both your maximum heart rate and resting heart rate to provide a more personalized training intensity.
- 02
How do I use the zone ranges capability?
To find your training boundaries, use calculate_zone_ranges by providing your current age and resting heart rate in BPM.
- 03
Can I calculate my Heart Rate Reserve separately?
Yes, you can use the calculate_heart_rate_reserve capability to find exactly how many beats per minute are available for your training intensity.
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