---
title: "Dangsaju (12 Stars) (당사주)"
method: GET
path: "/api/trpc/korean.dangsaju"
tags: ["Korean"]
---

# Dangsaju (12 Stars) (당사주)

`GET /api/trpc/korean.dangsaju`

## Request

- Base URL: `https://api.asktian.com`
- URL: `https://api.asktian.com/api/trpc/korean.dangsaju`
- Auth: HTTP bearer

당사주 (Dangsaju / 唐四柱) — the uniquely Korean 'Tang Four Pillars' folk method, distinct from saju (Korean BaZi). It reads a life in four stages by placing the 십이성 (12 stars) on the four birth pillars: 초년(early)/중년(middle)/장년(prime)/말년(late) life. The 12 stars sit on a fixed 12-branch ring (天貴 at 子 … 天壽 at 亥); the year branch gives the early-life star directly, then three inclusive forward walks — stepping by the lunar month-number, the lunar day-number, and the hour-branch — give the middle/prime/late stars. Uses the LUNAR calendar (음력) with the 띠 (설날) year boundary (not 立春), branches only (the heavenly stems are ignored). Deterministic, gold-locked to two published worked charts (天貴/天刃/天驛/天福 and 天厄/天刃/天孤/天權). A symbolic Korean folk tradition for reflection — not a validated predictor.

Cost: 3 TIAN Points per call. tRPC procedure `korean.dangsaju`.

## Query parameters

- `input` string

## Response `200`

tRPC result envelope

- TrpcResult: tRPC HTTP response envelope.
  - `result` object
    - `data` object: The procedure's return value (system-specific).

---

[API](https://skmtc.dev/asktian/apis/asktian-metaphysics-api.md) · [All operations](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/llms.txt) · [OpenAPI document](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/revisions/3c8fdc979206?raw)