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Birth charts, synastry and birth-place search from an ephemeris. Free, read-only, nothing stored.
Remote server: your requests and data go to lunonis.com. Claude Code: claude mcp add --transport http lunonis-astrology https://lunonis.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
natal_chart — Calculate a real natal (birth) chart from a birth date, optional birth time and a city. Returns the Sun, Moon and rising signs, every planetsearch_places — Find birth cities by name. Returns up to 6 candidates { id, name, region, country }, the biggest first. Use it to disambiguate a city, then compatibility — Compare two people's charts (synastry) from their birth data. Returns the overall tone (flowing, mixed or charged), whether the Sun elementsNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.