---
title: "Family System Pattern"
method: POST
path: "/family/system-pattern"
tags: ["Family Astrology"]
---

# Family System Pattern

`POST /family/system-pattern`

System-level family astrological signatures.

## Request body

- Family
  - `members` object[], required
    - `date` string, required
    - `time` string, required
    - `timezoneOffset` number, nullable
    - `latitude` number, nullable
    - `longitude` number, nullable
    - `houseSystem` string
    - `name` string
    - `city` string
    - `zodiacType` 'tropical' | 'sidereal'
    - `ayanamsaId` number, nullable
    - `cosmogram` boolean
    - `role` 'parent' | 'child' | 'grandparent' | 'sibling' | 'spouse'

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `patterns` unknown[], nullable
      - unknown

## Other responses

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

---

[API](https://skmtc.dev/astroway/apis/astroway-calculation-api.md) · [All operations](https://skmtc.dev/astroway/apis/astroway-calculation-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/astroway/astroway-calculation-api/revisions/793e5c2dbcdf/schema)