11 min read·
Birth Chart Calculation From Scratch: The Full Algorithm
Every step of a birth chart calculation explained for developers. From UTC conversion to aspect orbs, with a working API example.
Torsten Brinkmann
Astrologer & Developer Advocate
Germany
Torsten Brinkmann combines 16 years of Western astrology practice with a software engineering background, specializing in astrological calculation tools, birth chart APIs, and planetary aspect analysis. His Computer Science training shapes writing that addresses both the astronomical mathematics behind natal charts and the developer integration patterns for astrology APIs. He is currently writing a technical guide to birth chart calculation for developers.
Computer Science background16 years of practiceWriting a technical astrology guide
Western astrologyBirth chart analysisPlanetary aspectsSynastryForecastTransit forecastingHuman DesignBodygraph analysisAPI integrationAstrology software
57 articles published
Articles by Torsten Brinkmann
14 min read·
Astrology MCP Server: 255+ AI Tools Across 18+ Domains [2026]
Connect Claude, ChatGPT, Cursor, or n8n to 255+ astrology, Vedic, human design, and tarot tools over Remote MCP. One API key, 18+ domains, no install.
10 min read·
Daily Horoscope API with Unique Forecasts Per Sign [2026]
Most horoscope APIs return identical text for 11 of 12 signs. Learn how whole-sign house positions produce unique daily content per zodiac sign with transit metadata.
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Astrology API Accuracy Testing: 2,921 Gold Standard Tests
How RoxyAPI verifies astrology API accuracy: 2,921 gold standard tests pinned to NASA JPL Horizons and per-domain references, run on every deploy.
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Shadbala: The Complete Guide to Six-Fold Planetary Strength in Vedic Astrology
Master the Shadbala system measuring planetary strength through six components: Sthana, Dig, Kala, Chesta, Naisargika, and Drik Bala. Learn Virupas, Rupas, and strength ratios for accurate Jyotish predictions.
20 min read·
The 27 Nakshatras: Complete Guide to Lunar Mansions in Vedic Astrology
Explore all 27 nakshatras from Ashwini to Revati with ruling planets, deities, symbols, personality traits, and remedies. The definitive guide to lunar mansions in Jyotish.
15 min read·
Planetary Yogas in Vedic Astrology: 300+ Combinations for Wealth, Power, and Spiritual Growth
Explore the most important planetary yogas in Jyotish including Raja Yoga, Dhana Yoga, Gajakesari Yoga, Viparita Raja Yoga, and Pancha Mahapurusha Yogas. Learn formation rules and life effects.
17 min read·
Manglik Dosha, Kalsarpa Dosha, and Sadhesati: Complete Guide to Doshas in Vedic Astrology
Understand the three most feared doshas in Vedic astrology. Learn formation rules, severity levels, life impact, cancellation conditions, and traditional remedies for Manglik, Kalsarpa, and Sadhesati.
14 min read·
Planetary Aspects (Drishti) in Vedic Astrology: How Planets Influence Each Other Across the Chart
Master the Vedic aspect (Drishti) system including full 7th aspects, special aspects of Mars, Jupiter, and Saturn, mutual aspects, and aspect strength. Learn how planetary glances shape personality and destiny.
12 min read·
Tarot Court Cards Explained: Pages, Knights, Queens, and Kings in Every Suit
Master the 16 court cards in tarot. Learn what Pages, Knights, Queens, and Kings represent in each suit, how to read them as people or energies, and common interpretation mistakes.
16 min read·
The Real Cost of Building an Astrology Backend from Scratch (2026 Breakdown)
Building an astrology backend from scratch costs $50K-$200K and takes 6-12 months. Here is a full cost breakdown of ephemeris engines, infrastructure, and maintenance vs using an API.
12 min read·
The 12 Zodiac Signs Explained: Traits, Strengths, and Weaknesses
Complete guide to all 12 zodiac signs. Learn the traits, strengths, weaknesses, and compatibility of every sign from Aries to Pisces.