How accurate are the ovulation predictions?

Predictions are based on standard biological models using your provided average cycle length and last period start date. While highly precise for tracking patterns, they should be used as an estimate rather than a medical guarantee.

What information do I need to provide?

To use the tools, you need the ISO 8601 date of your last period start and your average menstrual cycle length in days.

Can I track different cycle lengths?

Yes, you can provide any positive number for your average cycle length to get customized predictions.

Ovulation and Fertile Window Calculator MCP Connector for Claude

A+

Predict ovulation dates, fertile windows, and peak conception days based on your menstrual cycle.

3 tools Official Updated Jun 28, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides precise biological predictions for reproductive health tracking. By using tools like estimate_ovulation_date, get_fertile_window_range, and identify_peak_fertility_days, users can accurately estimate their ovulation day, the span of their fertile window, and the specific days with the highest probability of conception based on their last period start date and average cycle length.

fertilityovulationhealth-trackingreproductive-healthcycle-tracking

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_lKRk9tdhNWSrrV9QtUDWCZQLBkrULlnaK9fRhsfG/mcp

② Claude Code (terminal)

claude mcp add --transport http ovulation-and-fertile-window-calculator https://edge.vinkius.com/vk_preview_lKRk9tdhNWSrrV9QtUDWCZQLBkrULlnaK9fRhsfG/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "ovulation-and-fertile-window-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_lKRk9tdhNWSrrV9QtUDWCZQLBkrULlnaK9fRhsfG/mcp"
    }
  }
}

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