Western Natal Chart App

Build a tropical astrology app — natal chart, aspects, Hellenistic Lots, house cusps.

Tropical Western astrology with 23 house systems and Hellenistic Lots.

What you'll build

Full tropical natal chart with all planets + ascendant + MC
Aspect grid (conjunction, trine, square, sextile, opposition) with orbs
House cusps for any of 23 systems — Placidus, Whole Sign, Koch, Equal
Hellenistic Lots: Fortune, Spirit, Eros, Necessity, Courage, Victory, Nemesis
Asteroids: Chiron, Ceres, Pallas, Juno, Vesta, Lilith

Build this with AI

Copy the full prompt below, paste it into ChatGPT, Claude, Cursor, or Lovable, and get a working Next.js implementation in minutes. No coding skill required.

94 lines Structured context With API endpoints

Step by step

01Get the full natal chart

Call /v1/western/natal/chart — returns all planets, ascendant, MC, and house cusps in one call. Default house system is Placidus; pass house_system=whole_sign for traditional.

GET /v1/western/natal/chart

curl "https://api.lifeastroapi.com/v1/western/natal/chart?date=1990-01-15&time=10%3A30&tz=Asia%2FKolkata&lat=19.076&lon=72.8777&house_system=placidus" \
  -H "Authorization: Bearer YOUR_API_KEY"

example response

{
  "ascendant": {
    "sign": "Pisces",
    "degree_in_sign": 20.1096
  },
  "mc": {
    "sign": "Sagittarius",
    "degree_in_sign": 22.9003
  },
  "planets": [
    {
      "name": "Sun",
      "sign": "Capricorn",
      "degree_in_sign": 24.7813,
      "house": 11
    },
    {
      "name": "Moon",
      "sign": "Virgo",
      "degree_in_sign": 13.8452,
      "house": 6
    }
  ]
}

02Add aspects and Hellenistic Lots

Call /v1/western/natal/aspects for the aspect grid and /v1/western/natal/lots for Fortune, Spirit, and 5 other Hermetic Lots. These are separate calls (20 credits each) so you can cache independently.