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BaZi Major Luck Cycles (Da Yun) Calculator
x402
BaZi Major Luck Cycles (Da Yun) Calculator is a paid API for AI agents from api.cn402.com, paid per call via x402, $0.16/call, status unknown (last checked 2026-09-15).
Computes the lifelong sequence of 10-year major luck cycles (大运/Da Yun) from a BaZi birth chart, returning each cycle's gan-zhi pillar and start age
Price / call$0.16
Success—
StatusUnknown
How this service works
Major Luck Cycles, 大运, Da Yun, BaZi 10-year fortune periods, Chinese astrology life cycles, major luck pillars. Compute the lifelong sequence of 10-year major luck cycles, each with gan-zhi pillar and start age.
Output
Returns an array of major luck cycle objects (dayun), each containing the gan-zhi pillar label and the age at which that 10-year period begins, plus a datetime timestamp of the response. Covers the person's entire lifespan sequence of fortune periods.
Example use cases
Life planning via major fortune cycles
“I'm turning 35 next month and want to understand what major luck cycle I'm entering. Can you map out my Da Yun periods from now through my 60s using my birth date of June 22, 1989 at 2:15pm in Shanghai?”
BaZi reading for career transitions
“I'm considering a big career change and my Chinese astrology friend mentioned checking my Da Yun cycles. Can you show me my complete 10-year major luck sequence from birth, especially highlighting which periods might be most favorable for major life decisions? I was born December 3, 1985 at 9:45am in Hong Kong.”
Comparing luck cycles with family members
“My spouse and I want to see our Da Yun fortune arcs side by side to plan our family milestones better. Can you calculate the major luck cycles for both of us? She was born February 14, 1992 at 11:20am in Taipei, and I was born September 8, 1990 at 4:30pm in Chengdu.”
Technical details
Endpoint
GEThttps://api.cn402.com/bazi/dayunWhen to prefer
Use this endpoint when you need the complete lifelong sequence of 10-year BaZi major luck cycles (Da Yun) for a specific person, including the gan-zhi pillar and start age for each period. Prefer this over annual or daily luck endpoints when the user wants long-term fortune arc analysis rather than a specific year or day reading.
Side effects
- Missing or invalid birth date/time returns 400 error
- Unsupported date range (too far in past or future) may return empty or error
- Missing gender parameter causes incorrect cycle direction calculation
- Ambiguous or missing birth location may affect accuracy of cycle timing
- Network timeout if computation is heavy for edge-case dates
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| birth | string | Birth (required) |
| gender | string | Gender (optional) |
Tags
x402
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