OpAstro

Open-source astrology engine for developers

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April 7, 2026 OpAstro is open-source astrology infrastructure for developers — CLI, local API, Swiss Ephemeris, and programmable horoscope workflows.

i’m excited to share OpAstro, a lightweight open-source astrology engine built for developers

most astrology tools i've used are either closed, hard to integrate, or not designed with modern developer workflows in mind.. i wanted something builders could actually install, run locally, inspect, script, and extend

so OpAstro ships with:

  • a real CLI

  • a Python package

  • a local API

  • Swiss Ephemeris support

  • structured and explainable horoscope workflows

it’s designed for developers, indie hackers, astrology builders, and spiritual-tech founders who want a programmable foundation instead of a black box

this is the open-core version, focused on practical tooling and lightweight interpretations

would love your feedback; especially from anyone building in open-source, astrology, wellness-tech, symbolic AI, or spiritual software

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About

i built OpAstro because i felt astrology tooling deserved better infrastructure too many tools in this space are closed, hard to inspect, or not designed for real developer workflows