---
title: "KP — Placidus cusps with sub-lord chain"
method: POST
path: "/vedic/kp/cusps"
tags: ["Vedic"]
---

# KP — Placidus cusps with sub-lord chain

`POST /vedic/kp/cusps`

KP-canonical Placidus cusps (12) with full sub-lord chain (sign / star / sub / sub-sub) for each cusp. Sub-lord chain follows K.S. Krishnamurti 1971 Vimshottari proportional sub-divisions.

## Request body

- ChartInput — Birth data for a single natal chart. Required: date (YYYY-MM-DD), time (HH:mm:ss). Coordinates are latitude and longitude in decimal degrees, plus timezoneOffset in hours from UTC; the short forms lat, lon, lng and tz are rejected with 400 INVALID_FIELD. Omitting the coordinates is not the same as skipping them: houses, angles and everything derived from them are then computed for 0°N 0°E at UTC, which is a wrong answer rather than a neutral default.
  - `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

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `lagna` object, nullable
    - `cusps` object[], nullable
      - `house` number, nullable
      - `longitude` number, nullable
      - `sign` number, nullable
      - `signName` string, nullable
      - `signLord` number, nullable
      - `starName` string, nullable
      - `starLord` number, nullable
      - `subName` string, nullable
      - `subSubName` string, nullable

## Other responses

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

---

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