---
title: "Wellness Cycle Milestones"
method: POST
path: "/wellness/cycle"
tags: ["Wellness"]
---

# Wellness Cycle Milestones

`POST /wellness/cycle`

Age-based wellness milestones (Saturn return, Uranus opposition, hormonal shifts), nearby + full list.

## Request body

- WellnessCycleInput
  - `birthDate` string, required
  - `targetDate` string

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `ageYears` number, nullable
    - `nearbyMilestones` object[], nullable
      - `age` number, nullable
      - `theme` string, nullable
      - `system` string, nullable

## Other responses

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

## Changes

- **2026-08-22** `5a17388652f3` — 1 breaking, 1 info
  - added the new required request property `birthDate`
  - added the new optional request property `targetDate`

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

---

[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/8ab5a768b521/schema)