Full BaZi chart

POST

/bazi/chart

curl -X POST https://api.astroway.info/v1/bazi/chart \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "date": "1990-05-15", "time": "14:30:00", "timezoneOffset": 8 }'

const res = await fetch('https://api.astroway.info/v1/bazi/chart', {
  method: 'POST',
  headers: {
    'X-Api-Key': process.env.ASTROWAY_API_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "date": "1990-05-15",
    "time": "14:30:00",
    "timezoneOffset": 8
  }),
});
const { ok, data, error } = await res.json();
if (!ok) throw new Error(error.message);
console.log(data);

import os, requests

r = requests.post(
    'https://api.astroway.info/v1/bazi/chart',
    headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
    json={
      'date': "1990-05-15",
      'time': "14:30:00",
      'timezoneOffset': 8
    },
)
result = r.json()
if not result['ok']:
    raise RuntimeError(result['error']['message'])
print(result['data'])

<?php
use GuzzleHttp\Client;

$client = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
$r = $client->post('bazi/chart', [
    'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
    'json' => [
        'date' => '1990-05-15',
        'time' => '14:30:00',
        'timezoneOffset' => 8,
    ],
]);
$result = json_decode($r->getBody(), true);
if (!$result['ok']) throw new \RuntimeException($result['error']['message']);
print_r($result['data']);

The four pillars with everything the classical apparatus reads off them in one call: hidden stems, na yin, the twelve stages of the day master, element balance over all eight characters, the strength verdict, symbolic stars from both reference pillars, and the branch and stem interactions. Localised by language. Pass longitude with trueSolarTime true to cut the double-hour from the sun over the birth place; the correction reaches the day and hour only, never the year and month, which turn on world instants.

Authorizations

ApiKeyAuth

Request Body^required

application/json

object

date required

string

/^\d{4}-\d{2}-\d{2}$/

time

string

/^\d{2}:\d{2}(:\d{2})?$/

timezoneOffset

number

>= -14 <= 14

longitude

number

>= -180 <= 180

trueSolarTime

boolean

stageSchool

string

Allowed values: classical unified

includeFullTable

boolean

language

string

Example

{
  "date": "1990-05-15",
  "time": "14:30:00",
  "timezoneOffset": 8
}

Responses

200

Successful calculation

application/json

object

boolean

data

object

solarYear

number

nullable

pillars

Array<object>

nullable

object

name

string

nullable

stem

string

nullable

branch

string

nullable

pillar

string

nullable

animal

string

nullable

animalName

string

nullable

stemElement

string

nullable

stemElementName

string

nullable

hiddenStems

Array<object>

nullable

object

stem

string

nullable

stemIndex

number

nullable

element

string

nullable

yin

boolean

nullable

role

string

nullable

weight

number

nullable

naYin

object

chinese

string

nullable

pinyin

string

nullable

english

string

nullable

element

string

nullable

jiaziIndex

number

nullable

elementName

string

nullable

dayMasterStage

object

stage

string

nullable

chinese

string

nullable

name

string

nullable

dayMaster

object

stem

string

nullable

element

string

nullable

elementName

string

nullable

polarity

string

nullable

elementBalance

object

visible

object

Wood

number

nullable

Fire

number

nullable

Earth

number

nullable

Metal

number

nullable

Water

number

nullable

withHiddenStems

object

Wood

number

nullable

Fire

number

nullable

Earth

number

nullable

Metal

number

nullable

Water

number

nullable

weighted

object

Wood

number

nullable

Fire

number

nullable

Earth

number

nullable

Metal

number

nullable

Water

number

nullable

dominantElement

string

nullable

missingElements

Array

nullable

weighting

string

nullable

dominantElementName

string

nullable

missingElementNames

Array

nullable

strength

object

framework

string

nullable

supportScore

number

nullable

drainScore

number

nullable

supportRatio

number

nullable

verdict

string

nullable

hasSeason

boolean

nullable

hasRoot

boolean

nullable

hasAllies

boolean

nullable

favourableElements

Array<string>

nullable

unfavourableElements

Array<string>

nullable

caveat

string

nullable

symbolicStars

object

byYearPillar

Array<object>

nullable

object

key

string

nullable

chinese

string

nullable

pinyin

string

nullable

english

string

nullable

pillars

Array<string>

nullable

meaning

string

nullable

schoolNote

string

nullable

byDayPillar

Array<object>

nullable

object

key

string

nullable

chinese

string

nullable

pinyin

string

nullable

english

string

nullable

pillars

Array<string>

nullable

meaning

string

nullable

interactions

Array<object>

nullable

object

type

string

nullable

chinese

string

nullable

english

string

nullable

pillars

Array<string>

nullable

members

Array<string>

nullable

producesElement

string

nullable

schoolNote

string

nullable

stageSchool

string

nullable

language

string

nullable

notes

Array

nullable

methodology

string

nullable

source

string

nullable

disclaimer

string

nullable

Example

{
  "ok": true,
  "data": {
    "solarYear": 1990,
    "pillars": [
      {
        "name": "year",
        "stem": "Geng",
        "branch": "Wu",
        "pillar": "Geng-Wu",
        "animal": "Horse",
        "animalName": "Кінь",
        "stemElement": "Metal",
        "stemElementName": "Метал",
        "hiddenStems": [
          {
            "stem": "Ding",
            "stemIndex": 3,
            "element": "Fire",
            "yin": true,
            "role": "principal",
            "weight": 0.7
          },
          {
            "stem": "Ji",
            "stemIndex": 5,
            "element": "Earth",
            "yin": true,
            "role": "middle",
            "weight": 0.3
          }
        ],
        "naYin": {
          "chinese": "路旁土",
          "pinyin": "Lu Pang Tu",
          "english": "Roadside Earth",
          "element": "Earth",
          "jiaziIndex": 6,
          "elementName": "Земля"
        },
        "dayMasterStage": {
          "stage": "bath",
          "chinese": "沐浴",
          "name": "Обмивання"
        }
      },
      {
        "name": "month",
        "stem": "Xin",
        "branch": "Si",
        "pillar": "Xin-Si",
        "animal": "Snake",
        "animalName": "Змія",
        "stemElement": "Metal",
        "stemElementName": "Метал",
        "hiddenStems": [
          {
            "stem": "Bing",
            "stemIndex": 2,
            "element": "Fire",
            "yin": false,
            "role": "principal",
            "weight": 0.6
          },
          {
            "stem": "Geng",
            "stemIndex": 6,
            "element": "Metal",
            "yin": false,
            "role": "middle",
            "weight": 0.3
          },
          {
            "stem": "Wu",
            "stemIndex": 4,
            "element": "Earth",
            "yin": false,
            "role": "residual",
            "weight": 0.1
          }
        ],
        "naYin": {
          "chinese": "白蠟金",
          "pinyin": "Bai La Jin",
          "english": "White Wax Metal",
          "element": "Metal",
          "jiaziIndex": 17,
          "elementName": "Метал"
        },
        "dayMasterStage": {
          "stage": "growth",
          "chinese": "長生",
          "name": "Зростання"
        }
      },
      {
        "name": "day",
        "stem": "Geng",
        "branch": "Chen",
        "pillar": "Geng-Chen",
        "animal": "Dragon",
        "animalName": "Дракон",
        "stemElement": "Metal",
        "stemElementName": "Метал",
        "hiddenStems": [
          {
            "stem": "Wu",
            "stemIndex": 4,
            "element": "Earth",
            "yin": false,
            "role": "principal",
            "weight": 0.6
          },
          {
            "stem": "Yi",
            "stemIndex": 1,
            "element": "Wood",
            "yin": true,
            "role": "residual",
            "weight": 0.3
          },
          {
            "stem": "Gui",
            "stemIndex": 9,
            "element": "Water",
            "yin": true,
            "role": "middle",
            "weight": 0.1
          }
        ],
        "naYin": {
          "chinese": "白蠟金",
          "pinyin": "Bai La Jin",
          "english": "White Wax Metal",
          "element": "Metal",
          "jiaziIndex": 16,
          "elementName": "Метал"
        },
        "dayMasterStage": {
          "stage": "nurture",
          "chinese": "養",
          "name": "Виношування"
        }
      },
      {
        "name": "hour",
        "stem": "Gui",
        "branch": "Wei",
        "pillar": "Gui-Wei",
        "animal": "Goat",
        "animalName": "Коза",
        "stemElement": "Water",
        "stemElementName": "Вода",
        "hiddenStems": [
          {
            "stem": "Ji",
            "stemIndex": 5,
            "element": "Earth",
            "yin": true,
            "role": "principal",
            "weight": 0.6
          },
          {
            "stem": "Ding",
            "stemIndex": 3,
            "element": "Fire",
            "yin": true,
            "role": "residual",
            "weight": 0.3
          },
          {
            "stem": "Yi",
            "stemIndex": 1,
            "element": "Wood",
            "yin": true,
            "role": "middle",
            "weight": 0.1
          }
        ],
        "naYin": {
          "chinese": "楊柳木",
          "pinyin": "Yang Liu Mu",
          "english": "Willow Wood",
          "element": "Wood",
          "jiaziIndex": 19,
          "elementName": "Дерево"
        },
        "dayMasterStage": {
          "stage": "cap",
          "chinese": "冠帶",
          "name": "Повноліття"
        }
      }
    ],
    "dayMaster": {
      "stem": "Geng",
      "element": "Metal",
      "elementName": "Метал",
      "polarity": "Ян"
    },
    "elementBalance": {
      "visible": {
        "Wood": 0,
        "Fire": 2,
        "Earth": 2,
        "Metal": 3,
        "Water": 1
      },
      "withHiddenStems": {
        "Wood": 2,
        "Fire": 3,
        "Earth": 4,
        "Metal": 4,
        "Water": 2
      },
      "weighted": {
        "Wood": 0.4,
        "Fire": 1.6,
        "Earth": 1.6,
        "Metal": 3.3,
        "Water": 1.1
      },
      "dominantElement": "Metal",
      "missingElements": [],
      "weighting": "Each branch contributes one character split among the stems it shelters: 1.0 alone, 0.7/0.3 for two, 0.6/0.3/0.1 for three (本气/中气/余气). The membership is canonical; the split is a stated convention, and the day-count 人元司令 scheme distributes the same characters differently.",
      "dominantElementName": "Метал",
      "missingElementNames": []
    },
    "strength": {
      "framework": "扶抑 support-and-suppress",
      "supportScore": 3.9,
      "drainScore": 3.1,
      "supportRatio": 0.557,
      "verdict": "strong",
      "hasSeason": false,
      "hasRoot": true,
      "hasAllies": true,
      "favourableElements": [
        "Water",
        "Wood",
        "Fire"
      ],
      "unfavourableElements": [
        "Earth",
        "Metal"
      ],
      "caveat": "One framework of several, and the thresholds are ours. 扶抑 weighs support against drain; 調候, 通關, 病藥 and 專旺 read the same chart by other rules and can reach the opposite verdict, and a chart near the boundary is exactly where they part. Two limits worth stating plainly: the ratio counts the month branch exactly like the other three, where the tradition weighs the month above all, and the 0.55 / 0.45 cut points are a convention of this API rather than a canonical rule. The three classical criteria are reported unweighted beside the ratio, so a reader who weighs the month can reach their own verdict from the same inputs."
    },
    "symbolicStars": {
      "byYearPillar": [
        {
          "key": "nobleman",
          "chinese": "天乙貴人",
          "pinyin": "Tian Yi Gui Ren",
          "english": "Heavenly Nobleman",
          "pillars": [
            "hour"
          ],
          "meaning": "help arriving from outside, the patron and the timely intervention",
          "schoolNote": "The 三命通會 reading for 庚 (甲戊庚牛羊). 淵海子平 puts the 庚 nobleman at 午 and 寅 instead; that reading is reported separately."
        },
        {
          "key": "noblemanAlt",
          "chinese": "天乙貴人",
          "pinyin": "Tian Yi Gui Ren",
          "english": "Heavenly Nobleman (淵海子平 reading)",
          "pillars": [
            "year"
          ],
          "meaning": "help arriving from outside, the patron and the timely intervention",
          "schoolNote": "The 淵海子平 and 星平會海 reading for 庚 (庚辛逢馬虎). The 三命通會 reading is reported under `nobleman`."
        }
      ],
      "byDayPillar": [
        {
          "key": "canopy",
          "chinese": "華蓋",
          "pinyin": "Hua Gai",
          "english": "Canopy",
          "pillars": [
            "day"
          ],
          "meaning": "solitude and study, the scholar and the recluse"
        },
        {
          "key": "nobleman",
          "chinese": "天乙貴人",
          "pinyin": "Tian Yi Gui Ren",
          "english": "Heavenly Nobleman",
          "pillars": [
            "hour"
          ],
          "meaning": "help arriving from outside, the patron and the timely intervention",
          "schoolNote": "The 三命通會 reading for 庚 (甲戊庚牛羊). 淵海子平 puts the 庚 nobleman at 午 and 寅 instead; that reading is reported separately."
        },
        {
          "key": "noblemanAlt",
          "chinese": "天乙貴人",
          "pinyin": "Tian Yi Gui Ren",
          "english": "Heavenly Nobleman (淵海子平 reading)",
          "pillars": [
            "year"
          ],
          "meaning": "help arriving from outside, the patron and the timely intervention",
          "schoolNote": "The 淵海子平 and 星平會海 reading for 庚 (庚辛逢馬虎). The 三命通會 reading is reported under `nobleman`."
        }
      ]
    },
    "interactions": [
      {
        "type": "sixHarmony",
        "chinese": "六合",
        "english": "Six Harmony",
        "pillars": [
          "year",
          "hour"
        ],
        "members": [
          "Wu",
          "Wei"
        ],
        "producesElement": "Earth",
        "schoolNote": "The Wu-Wei harmony is given as Earth here; other transmissions read it as the sun-and-moon pair and assign no element."
      }
    ],
    "stageSchool": "classical",
    "language": "uk",
    "notes": [],
    "methodology": "The four pillars with everything the classical apparatus reads off them: hidden stems, na yin, the twelve stages of the day master, the element balance over all eight characters, the 扶抑 strength verdict, the symbolic stars from both reference pillars, and the branch and stem interactions. Where a transmission splits, both readings ship and the split is named at the field.",
    "source": "淵海子平, 三命通會, 子平真詮: all public domain",
    "disclaimer": "BaZi pillars use the canonical 60-jiazi cycle, anchored at 1990-01-01 = Bing-Yin. Year and month boundaries are the exact Lichun and 節 instants from the ephemeris, stated in China Standard Time; pass time and timezoneOffset for births near a boundary. Day and hour follow the birthplace clock, with the day rolling at 23:00 local."
  }
}

400

Validation error

application/json

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_INPUT",
    "message": "Validation failed: date: Date must be YYYY-MM-DD",
    "details": [
      {
        "path": "date",
        "message": "Date must be YYYY-MM-DD"
      }
    ]
  }
}

401

Missing or invalid API key

application/json

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key"
  }
}

Корисно?

Hidden stems (Cang Gan)

Full BaZi chart

Authorizations

Request Body required

Example

Responses

200

Example

400

Example

401

Example

Request Body^required