NatalChart.AI Astrology

Connect it to your AI

Claude Code

claude mcp add --transport http astrology https://www.natalchart.ai/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://www.natalchart.ai/mcp

This server expects extra headers, usually an API key from its maker.

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "astrology": {
      "url": "https://www.natalchart.ai/mcp"
    }
  }
}

Tools it offers

10 tools, as the server itself reported during our check on Oct 31, 2026.

• natal_chartA 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;
• daily_transitsThe 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
• skyPlanetary 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,
• usageYour 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.
• transitsUp 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. (API Pro) Use it for forecasts over weeks or month
• synastryTwo charts compared: inter-chart aspects with orbs, house overlays both ways and a score per life sphere. (API Pro) Use it when the user asks about compatibility or a relationship and gives birth data for both people.
• solar_returnThe solar return chart for a year, cast for the birth place or another location. (API Pro) Use it for the year ahead from a birthday; it needs a birth time.
• best_daysEvery 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 day
• location_scoreOne place against one chart: the relocated angles, the planets on them with orbs, a score for each life sphere and an overall score. (API Pro) Use it when the user asks whether a specific city or place suits them; it nee
• best_citiesThe catalogue of major cities ranked for one chart, overall or by chosen life spheres, worldwide or in one region. (API Pro) Use it when the user asks where in the world to live, work or travel; it ranks major cities, op

Questions