#ephemeris

Astronomical ephemeris and Vedic astrology MCP server. 7 tools for AI agents: natal charts, dashas, vargas, transits, muhurta, graph emit (Cypher/SurrealQL/JSON-LD), and chart descriptions. Sub-arcsecond precision, 44 ayanamsha systems, 10 house systems, 50 yogas, 27 nakshatras. Clean-room Rust implementation.

Open Ephemeris is a production-grade MCP server that gives Claude, ChatGPT, Gemini, Cursor, and any MCP-compatible agent direct access to real astronomical data. Over 100 tools cover the full range of astrological traditions: natal chart calculation, transit and progression forecasting, synastry, astrocartography ACG lines, Human Design body graph, BaZi four pillars, eclipse windows, lunar phases, planetary hours, and fixed star positions. All positions are computed at request time from JPL DE440 — accurate to arc-second precision. No hallucinated positions. No astronomy math in your application code. Free tier available.

MCP server for astrology and divination. Connect Claude, ChatGPT, or any MCP-compatible AI to real ephemeris calculations across Vedic and Western astrology, numerology, and tarot. Covers natal charts, 5-level Vimshottari Dasha, yoga and dosha detection, matchmaking with Rajju/Vedha vetoes, panchanga, KP system, Lal Kitab, and tarot spreads. 103 tools, OAuth 2.1. Free sandbox tier — 500 calls/month, no credit card.

Comprehensive astrology MCP exposing every endpoint of the AstroWay Calculation API as tools — natal charts, synastry, transits, Vedic dashas (Vimshottari, Yogini, Ashtottari, Kalachakra), 16 Vargas, Tarot (Rider-Waite-Smith / Marseille / Lenormand), Numerology (5 systems), Human Design, AI horoscopes. Sub-arcsecond Swiss Ephemeris precision. 10 000 free credits/month, no card required.