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Birth charts, transits, moon phases and more from precise astronomical calculations. Natal Compass.
Remote server: your requests and data go to natalcompass.com. Claude Code: claude mcp add --transport http connector https://natalcompass.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
get_natal_chart — Computes a birth chart from a date, an optional time and a place: the sign and degree of the Sun, Moon, planets, lunar nodes, Lilith, Chironget_transits — Gives where the Sun, Moon and planets are on a date: the sign and degree of each, computed geocentrically for 00:00 UTC on that date, or forget_transits_to_chart — Relates the sky on a date to a specific birth chart: which transiting planets form major aspects to which natal points, with orbs, plus the get_moon_phase — Gives the Moon on a date: the phase name, how much of the Moon is lit, its elongation from the Sun, the sign and degree of the Moon and of tget_retrogrades — Lists the retrograde periods of Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto in a calendar year: when each planet statioget_synastry — Compares two birth charts: the major aspects between one person's Sun, Moon, planets and North Node and the other's, each with its orb. Use get_solar_return — Computes a solar return chart: the moment in a given year when the Sun returns to its natal position, and the chart cast for that moment at Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.