---
title: "Luck Pillars (Da Yun)"
method: POST
path: "/bazi/luck-pillars"
tags: ["BaZi (Four Pillars)"]
---

# Luck Pillars (Da Yun)

`POST /bazi/luck-pillars`

10-year luck pillars sequence. Direction by gender + year-stem polarity per Ziping canon.

## Request body

- BaziLuckPillarsInput
  - `date` string, required
  - `time` string
  - `timezoneOffset` number
  - `gender` 'male' | 'female', required
  - `count` integer

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `direction` string, nullable
    - `luckPillars` unknown[], nullable
      - unknown

## Other responses

- `400` — Validation error
- `401` — Missing or invalid API key

---

[API](https://skmtc.net/astroway/apis/astroway-calculation-api.md) · [All operations](https://skmtc.net/astroway/apis/astroway-calculation-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/astroway/astroway-calculation-api/revisions/529d7d36d7d6/schema)