Western Astrology API

Precise natal chart calculation. Planet positions, twelve houses, aspect relationships — astronomical-grade chart data, AI-ready.

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Precise Ephemeris

Based on astronomical ephemeris tables for precise calculation of Sun, Moon, and planetary positions with minimal error.

House Systems

Supports mainstream house systems, calculates twelve house cusps and planet-to-house placements.

Aspect Analysis

Auto-calculates major aspects between planets (conjunction, sextile, square, trine, opposition) with orb tolerances.

POST /v1/astro/natal

{
  "sun": { "sign": "Aries", "degree": 15.23 },
  "moon": { "sign": "Cancer", "degree": 8.47 },
  "ascendant": "Leo",
  "aspects": ["Sun trine Moon"]
}

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Generate your chart for free and let AI decode your star map.

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