---
title: "Year Pillars × 10"
method: POST
path: "/bazi/year-pillar-decade"
tags: ["BaZi (Four Pillars)"]
---

# Year Pillars × 10

`POST /bazi/year-pillar-decade`

10 consecutive year pillars from a given starting year.

## Request body

- BaziDecade
  - `startYear` integer, required

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `decade` object[], nullable
      - `solarYear` number, nullable
      - `pillar` string, nullable
      - `animal` string, nullable
      - `element` object, nullable

## 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/6828e5609564/schema)