Follow the passion
Cosmic Compat
Seventeen astrology and numerology systems, read together as one portrait.
Visit cosmiccompat.comWhy I made it
Astrology has always been a passion of mine. Cosmic Compat is the tool I always wanted for it: every system side by side, computed from the actual sky, and read together as one portrait.
What I built
- Seventeen systems computed from a birth date and place, including Western and Vedic astrology, BaZi, Nine Star Ki, numerology, and Human Design.
- One written portrait that Claude synthesizes from every system at once, plus compatibility between two people.
- A reverse search that finds the birth dates and places that match a person best.
- An astronomy engine with a fallback anchored to NASA JPL data, so results stay accurate even when the primary ephemeris is unavailable.
- Detection of rare chart patterns like the Yod and the Grand Trine.
Built with
- Next.js
- React
- Swiss Ephemeris
- JPL Horizons
- Claude
- Firebase
