---
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), latitude and longitude in decimal degrees. The short forms lat, lon, lng and tz are rejected with 400 INVALID_FIELD; pass the full names. timezoneOffset is hours from UTC and defaults to 0, meaning UTC. city is a display label only: nothing here geocodes it, so it never stands in for coordinates.
  - `date` string, required
  - `time` string, required
  - `timezoneOffset` number, nullable — Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC.
  - `latitude` number, required
  - `longitude` number, required
  - `houseSystem` string
  - `name` string
  - `city` string
  - `zodiacType` 'tropical' | 'sidereal'
  - `ayanamsaId` number, nullable
  - `ayanamsa` 'fagan-bradley' | 'lahiri' | 'de-luce' | 'raman' | 'krishnamurti' | 'kp' | 'yukteshwar' | 'jn-bhasin' | 'true-citra' | 'djwhal-khul' — Sidereal school by name. Lahiri when omitted. Equivalent to ayanamsaId; send either.
  - `cosmogram` boolean

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `lagna` object, nullable
      - `sign` number, nullable
      - `signName` string, nullable
      - `longitude` number, nullable
    - `ayanamsa` number, nullable
    - `cusps` object[], nullable
      - `house` number, nullable
      - `longitude` number, nullable
      - `sign` number, nullable
      - `signName` string, nullable
      - `signLord` number, nullable
      - `signLordName` string, nullable
      - `star` number, nullable
      - `starName` string, nullable
      - `starLord` number, nullable
      - `starLordName` string, nullable
      - `sub` number, nullable
      - `subName` string, nullable
      - `subSub` number, nullable
      - `subSubName` string, nullable
      - `positionInSign` number, nullable
      - `positionInStar` number, nullable
    - `method` string, nullable

## Other responses

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

## Changes

- **2026-08-24** `8ab5a768b521` — 12 info
  - added the optional property `data/ayanamsa` to the response with the `200` status
  - added the optional property `data/cusps/items/positionInSign` to the response with the `200` status
  - added the optional property `data/cusps/items/positionInStar` to the response with the `200` status
  - added the optional property `data/cusps/items/signLordName` to the response with the `200` status
  - …8 more
- **2026-08-18** `dd3764875e7a` — 1 info
  - added the new optional request property `ayanamsa`
- **2026-08-15** `e637d1a9911b` — 2 warning
  - the `timezoneOffset` request property's max was set to `14.00`
  - the `timezoneOffset` request property's min was set to `-14.00`
- **2026-08-11** `b0533bcc12c0` — 4 breaking, 4 warning, 2 info
  - the request property `latitude` became not nullable
  - the request property `longitude` became not nullable
  - the request property `latitude` became required
  - the request property `longitude` became required
  - …6 more

[Change history](https://skmtc.dev/astroway/apis/astroway-calculation-api/changes/vedic/kp/cusps/post.md)

---

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