Open EphemerisDatabasesEducation & Learning ToolsEntertainment & MediaopenephemerisAlicenseAqualityBmaintenanceOpen Ephemeris is a high-precision astrology API with an MCP server exposing 116+ endpoints across natal charts, transits, synastry, Human Design, BaZi, solar returns, and much more. Updated a day ago (2026-11-14 14:21 UTC)445MIT