Menstrual Cycle Calculator

Menstrual Cycle Calculator MCP Connector for Claude

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Track menstrual cycle phases and identify fertile windows using historical period data.

3 tools Official Updated Jun 28, 2026 Official Vinkius Partner

This MCP server provides precise biological timeline predictions. By using tools like get_cycle_phases, get_fertile_window, and predict_next_period_event, users can accurately track the Menstrual, Follicular, Ovulatory, and Luteal phases of their cycle. The calculator uses the start date of the last period and average cycle duration to identify fertile windows and predict upcoming milestones.

menstrual-cyclefertilityhealth-trackingovulationreproductive-health

3 tools expose this connector's capabilities to your AI agent.

get_cycle_phases

Retrieves a detailed timeline of all four biological phases for the upcoming cycle

get_fertile_window

Identifies the specific date range during which conception is most likely

predict_next_period_event

Provides a quick look at the next major milestones in the user's cycle

See how to talk to your AI agent using Menstrual Cycle Calculator.

When is my next fertile window if my last period started on 2024-05-01 and my cycle is 28 days?

Your fertile window is predicted to be from 2024-05-11 to 2024-05-16.

What are the phases of my current cycle starting from 2024-06-10 with a 30-day duration?

Your cycle includes the Menstrual, Follicular, Ovulatory, and Luteal phases starting from 2024-06-10.

Predict my next period event based on a last period start date of 2024-01-15 and a 28-day cycle.

Your next period is predicted for 2024-02-12, with ovulation estimated around 2024-01-28.

Provide the date of your last period in YYYY-MM-DD format and your average cycle length using the `get_cycle_phases` tool.

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