skills.rest
openephemeris
openephemerisOFFICIAL
Explore all skills by this author →
WebsiteGitHub

openephemeris-setup

Integrate the OpenEphemeris MCP server for astronomical and astrological calculations.

3|Updated Mar 19, 2026
Search Tags:#api#mcp#astrology#astronomy#natal-chart#ephemeris
One-click install
npx skills add https://github.com/openephemeris/openephemeris-MCP --skill openephemeris-setup
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: openephemeris-setup
Source: https://github.com/openephemeris/openephemeris-MCP/tree/main/skills/openephemeris-setup
Command: npx skills add https://github.com/openephemeris/openephemeris-MCP --skill openephemeris-setup

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes assets (resource) components.

What problem does it solve?

This skill solves the challenge of integrating high-precision astronomical and astrological data into LLM workflows, eliminating hallucinations regarding planetary positions and celestial events.

Core Features & Use Cases

  • Precision Computation: Access 110+ endpoints for natal charts, transits, eclipses, and synastry powered by NASA JPL DE440 ephemeris data.
  • Versatile Integration: Connects the OpenEphemeris MCP server to AI environments like Claude, Cursor, and Windsurf for real-time astronomical analysis.
  • Use Case: A user can ask for a detailed natal chart calculation or a transit report for a specific date and location, receiving accurate, data-backed insights directly within their chat interface.

Quick Start

Install the OpenEphemeris MCP server by running npx -y @openephemeris/mcp-server in your terminal and configuring your API key.

Frequently Asked Questions about openephemeris-setup

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate accurate natal charts in an AI chat without hallucinations?▼

To calculate accurate natal charts without hallucinations, integrate the OpenEphemeris MCP server using NASA JPL DE440 ephemeris data. This provides 110+ endpoints for precise planetary positions, eliminating standard LLM celestial calculation errors.

Can I use the OpenEphemeris MCP server with Claude or Cursor for transit tracking?▼

Yes, the OpenEphemeris MCP server works with Claude, Cursor, and Windsurf for transit tracking. You can run the server via npx and configure your API key to execute real-time astronomical analysis directly within those MCP-compatible clients.

What astronomical data is needed to generate a synastry report using ephemeris data?▼

Generating a synastry report using ephemeris data requires specific birth dates, times, and locations. The OpenEphemeris server processes these inputs against NASA JPL DE440 data to output high-precision planetary positions needed for accurate compatibility analysis.

How do I set up an MCP server for astrology calculations in my local environment?▼

To set up an MCP server for astrology calculations, run npx -y @openephemeris/mcp-server in your terminal. You must then configure a valid OpenEphemeris API key within your MCP-compatible client to enable planetary position queries.

Does AI astrology integration support specialized reporting for eclipses and transits?▼

AI astrology integration through the OpenEphemeris server supports specialized reporting for eclipses and transits. It accesses 110+ endpoints powered by NASA JPL DE440 ephemeris data to deliver data-backed celestial event insights.

Why do large language models hallucinate planetary positions and how can an MCP server fix this?▼

Large language models hallucinate planetary positions because they lack built-in ephemeris data. Integrating the OpenEphemeris MCP server fixes this by querying 110+ precise astronomical endpoints, returning accurate, data-backed celestial calculations.

Related Skills

Explore More Data & Analytics Skills→
babamba2babamba2
46

sc4sap:mcp-setup

Install and configure the abap-mcp-adt-powerup MCP server for SAP connectivity.

Community
Advanced
openephemerisopenephemeris
3

natal-chart-reading

Calculate planetary positions and astrological chart data using the NASA JPL DE440 ephemeris.

Official
Advanced
j-roche-devj-roche-dev

weekly-planning

Analyze past performance and calendar events to identify scheduling gaps.

Community
Intermediate
openephemerisopenephemeris
3

astrocartography

Calculate planetary angular positions and generate astrocartography maps.

Official
Advanced