NatalChart.AI Astrology

ai.natalchart/astrologyVersion 1.0.0

Swiss Ephemeris astrology: natal charts, transits, synastry, solar returns and astrocartography.

Status

Responds226 msNov 14, 2026, 13:31 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:31 UTC
Latency: 226 ms
Remotes responding: 1 of 1
Sign-in: API key
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://www.natalchart.ai/mcpResponds226 msNov 14, 2026, 13:31 UTC

No sign-in

Claude Code

claude mcp add --transport http astrology https://www.natalchart.ai/mcp --header 'Authorization: Bearer <YOUR_TOKEN>'

Replace <YOUR_TOKEN> before running.

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: astrology
Remote MCP server URL: https://www.natalchart.ai/mcp
This server expects the header Authorization.

Cursor

{
  "mcpServers": {
    "astrology": {
      "url": "https://www.natalchart.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Replace <YOUR_TOKEN> before running.

VS Code

code --add-mcp '{"name":"astrology","type":"http","url":"https://www.natalchart.ai/mcp","headers":{"Authorization":"Bearer <YOUR_TOKEN>"}}'

Replace <YOUR_TOKEN> before running.

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

10 tools

Tools of NatalChart.AI Astrology
	Description		Read-only	Idempotent	Open world
`best_cities`The catalogue of major cities ranked for one chart, overall or by chosen life spheres, worldwide or in one region. (Premium or MAX) Use it when the user asks where in the world to live, work or travel; it ranks major cities, optionally by life sphere or region.	The catalogue of major cities ranked for one chart, overall or by chosen life spheres, worldwide or in one region. (Premium or MAX) Use it when the user asks where in the world to live, work or travel; it ranks major cities, optionally by life sphere or region.	Not declared	Yes	Yes	No
`best_days`Every day of a window of up to 62 days scored for one activity (general, business, romance, health, creative, travel, home, clarity): helping and hindering transits, Moon phase and sign, void of course. The five best days first. (Premium or MAX) Use it to pick dates for an activity within the next weeks.	Every day of a window of up to 62 days scored for one activity (general, business, romance, health, creative, travel, home, clarity): helping and hindering transits, Moon phase and sign, void of course. The five best days first. (Premium or MAX) Use it to pick dates for an activity within the next weeks.	Not declared	Yes	Yes	No
`daily_transits`The calculated day: the sky at noon UTC, the Moon's phase, the sky events of the coming week and, with birth data, every transit to the natal chart with its orb. No generated text. Use it for a day's horoscope or what is happening for someone now: send birth for a personal answer, leave it out for the general sky of that day.	The calculated day: the sky at noon UTC, the Moon's phase, the sky events of the coming week and, with birth data, every transit to the natal chart with its orb. No generated text. Use it for a day's horoscope or what is happening for someone now: send birth for a personal answer, leave it out for the general sky of that day.	Not declared	Yes	Yes	No
`location_score`One place against one chart: the relocated angles, the planets on them with orbs, a score for each life sphere and an overall score. (Premium or MAX) Use it when the user asks whether a specific city or place suits them; it needs a birth time and the place's coordinates.	One place against one chart: the relocated angles, the planets on them with orbs, a score for each life sphere and an overall score. (Premium or MAX) Use it when the user asks whether a specific city or place suits them; it needs a birth time and the place's coordinates.	Not declared	Yes	Yes	No
`natal_chart`A natal chart from birth data. "part" picks what to return: full (everything: bodies with sign, degree, speed, retrograde flag and house; the angles; twelve Placidus cusps; aspects with orbs; element and quality balance; fixed-star contacts), short (Sun, Moon and Ascendant, each body's sign, retrograde bodies, dominant element and quality), or one part: planets, angles, houses, aspects, elements, fixed-stars. Full by default. Use it whenever the user gives a birth date, time and place and asks about their chart, signs, houses or aspects, and before interpreting anything; part=short is enough for the Sun, Moon and rising sign.	A natal chart from birth data. "part" picks what to return: full (everything: bodies with sign, degree, speed, retrograde flag and house; the angles; twelve Placidus cusps; aspects with orbs; element and quality balance; fixed-star contacts), short (Sun, Moon and Ascendant, each body's sign, retrograde bodies, dominant element and quality), or one part: planets, angles, houses, aspects, elements, fixed-stars. Full by default. Use it whenever the user gives a birth date, time and place and asks about their chart, signs, houses or aspects, and before interpreting anything; part=short is enough for the Sun, Moon and rising sign.	Not declared	Yes	Yes	No
`sky`Planetary positions, Moon phase and the coming week's sky events for a date (?date=YYYY-MM-DD, today by default). Works without a key: try curl https://api.natalchart.ai/v1/sky Use it for where the planets are on a date, the Moon phase, or the coming retrogrades and ingresses, when no one's chart is involved.	Planetary positions, Moon phase and the coming week's sky events for a date (?date=YYYY-MM-DD, today by default). Works without a key: try curl https://api.natalchart.ai/v1/sky Use it for where the planets are on a date, the Moon phase, or the coming retrogrades and ingresses, when no one's chart is involved.	Not declared	Yes	Yes	No
`solar_return`The solar return chart for a year, cast for the birth place or another location. (Premium or MAX) Use it for the year ahead from a birthday; it needs a birth time.	The solar return chart for a year, cast for the birth place or another location. (Premium or MAX) Use it for the year ahead from a birthday; it needs a birth time.	Not declared	Yes	Yes	No
`synastry`Two charts compared: inter-chart aspects with orbs, house overlays both ways and a score per life sphere. (Premium or MAX) Use it when the user asks about compatibility or a relationship and gives birth data for both people.	Two charts compared: inter-chart aspects with orbs, house overlays both ways and a score per life sphere. (Premium or MAX) Use it when the user asks about compatibility or a relationship and gives birth data for both people.	Not declared	Yes	Yes	No
`transits`Up to 60 transit events in a window of up to 92 days, the most significant kept when there are more: exact transit-to-natal aspects by date, sign ingresses and stations. (Premium or MAX) Use it for forecasts over weeks or months (a year is four windows); for a single day use daily_transits.	Up to 60 transit events in a window of up to 92 days, the most significant kept when there are more: exact transit-to-natal aspects by date, sign ingresses and stations. (Premium or MAX) Use it for forecasts over weeks or months (a year is four windows); for a single day use daily_transits.	Not declared	Yes	Yes	No
`usage`Your plan, today's count and when the pool refills. Costs nothing. Use it when a call fails on the limit, or before a long series of calls, to see the plan and what is left today.	Your plan, today's count and when the pool refills. Costs nothing. Use it when a call fails on the limit, or before a long series of calls, to see the plan and what is left today.	Not declared	Yes	Yes	No

Details

Registry status: Active
Published: Oct 2, 2026
Updated: Oct 2, 2026
Website: https://www.natalchart.ai/astrology-mcp-server⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Data and analyticsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

Are you the operator? Claim this listing