Menstrual Cycle Calculator API
Menstrual Cycle Calculator predicts future menstrual cycles, fertile windows, and ovulation dates based on cycle history and patterns.
Live Test API
Try out the Menstrual Cycle Calculator with a live request and see the response in real-time.
API Request
API Response
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159{ "status": "ok", "error": null, "data": { "last_period_date": "2024-01-01", "cycle_length": 28, "period_length": 5, "cycles_calculated": 3, "cycles": [ { "cycle_number": 1, "period": { "start_date": "2024-01-01", "end_date": "2024-01-05", "duration_days": 5 }, "ovulation": { "date": "2024-01-15", "day_of_cycle": 14 }, "fertile_window": { "start_date": "2024-01-10", "end_date": "2024-01-15", "duration_days": 6 }, "pms_phase": { "start_date": "2023-12-21", "end_date": "2023-12-31" }, "cycle_phases": { "menstrual": { "start": "2024-01-01", "end": "2024-01-05", "description": "Menstruation" }, "follicular": { "start": "2024-01-06", "end": "2024-01-14", "description": "Follicular phase - preparing for ovulation" }, "ovulation": { "date": "2024-01-15", "description": "Ovulation - most fertile day" }, "luteal": { "start": "2024-01-16", "end": "2024-01-28", "description": "Luteal phase - preparing for next period" } }, "status": "past", "days_until": null, "days_ago": 715 }, { "cycle_number": 2, "period": { "start_date": "2024-01-29", "end_date": "2024-02-02", "duration_days": 5 }, "ovulation": { "date": "2024-02-12", "day_of_cycle": 14 }, "fertile_window": { "start_date": "2024-02-07", "end_date": "2024-02-12", "duration_days": 6 }, "pms_phase": { "start_date": "2024-01-18", "end_date": "2024-01-28" }, "cycle_phases": { "menstrual": { "start": "2024-01-29", "end": "2024-02-02", "description": "Menstruation" }, "follicular": { "start": "2024-02-03", "end": "2024-02-11", "description": "Follicular phase - preparing for ovulation" }, "ovulation": { "date": "2024-02-12", "description": "Ovulation - most fertile day" }, "luteal": { "start": "2024-02-13", "end": "2024-02-25", "description": "Luteal phase - preparing for next period" } }, "status": "past", "days_until": null, "days_ago": 687 }, { "cycle_number": 3, "period": { "start_date": "2024-02-26", "end_date": "2024-03-01", "duration_days": 5 }, "ovulation": { "date": "2024-03-11", "day_of_cycle": 14 }, "fertile_window": { "start_date": "2024-03-06", "end_date": "2024-03-11", "duration_days": 6 }, "pms_phase": { "start_date": "2024-02-15", "end_date": "2024-02-25" }, "cycle_phases": { "menstrual": { "start": "2024-02-26", "end": "2024-03-01", "description": "Menstruation" }, "follicular": { "start": "2024-03-02", "end": "2024-03-10", "description": "Follicular phase - preparing for ovulation" }, "ovulation": { "date": "2024-03-11", "description": "Ovulation - most fertile day" }, "luteal": { "start": "2024-03-12", "end": "2024-03-24", "description": "Luteal phase - preparing for next period" } }, "status": "past", "days_until": null, "days_ago": 659 } ], "current_status": { "phase": "Unknown", "description": "", "next_period": null, "days_until_next_period": null }, "averages": { "cycle_length": 28, "period_duration": 5, "days_between_periods": 28 }, "disclaimer": "This calculator provides estimates only. Actual cycles may vary. Consult a healthcare provider for medical advice." } }
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Frequently Asked Questions
Get answers to common questions about the Menstrual Cycle Calculator API
What does the Menstrual Cycle Calculator API do?
Menstrual Cycle Calculator predicts future menstrual cycles, fertile windows, and ovulation dates based on cycle history and patterns. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.
How fast is the Menstrual Cycle Calculator API?
The Menstrual Cycle Calculator API has an average response time of 187ms, with a median (p50) of 180ms and 99th percentile of 232ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.
How much does the Menstrual Cycle Calculator API cost?
Each call to the Menstrual Cycle Calculator API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.
How do I authenticate Menstrual Cycle Calculator API requests?
Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.
What HTTP methods does Menstrual Cycle Calculator support?
The Menstrual Cycle Calculator API supports GET requests. Simply pass your parameters as query strings in the URL. Check our documentation for detailed parameter specifications.
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