Koskamo

Llmastro MCP Ephemeris

An MCP server providing computed planetary positions, natal charts, transits, and astrological aspects using the Swiss Ephemeris engine. It exposes 19 tools for AI agents to retrieve verified astronomical data, validated against NASA JPL Horizons, ensuring positions are calculated rather than hallucinated by the LLM.

Visit Llmastro

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Llmastro MCP Ephemeris logo, by LlmastroCommunity listingLocal stdioSource reviewed; not executedPublished by Llmastro
Vendor documentation

What you can do with it

  • Retrieve computed planetary positions and moon phases
  • Generate full natal charts with houses and aspects
  • Calculate transits and synastry between birth dates
  • Validate ephemeris accuracy against NASA JPL Horizons

Source and maintenance

Community listingRegistry 0.2.3
mcp-registry: io.github.kairosastro-sketch/mcp-ephemeris@0.2.3Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@cosmosos/mcp-ephemeris 0.2.3

npm
@cosmosos/mcp-ephemeris package definition
{
  "version": "0.2.3",
  "transport": "stdio",
  "identifier": "@cosmosos/mcp-ephemeris",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "llmastro-mcp-ephemeris": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmosos/mcp-ephemeris@0.2.3"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "llmastro-mcp-ephemeris": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmosos/mcp-ephemeris@0.2.3"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "llmastro-mcp-ephemeris": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cosmosos/mcp-ephemeris@0.2.3"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "llmastro-mcp-ephemeris": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmosos/mcp-ephemeris@0.2.3"
      ]
    }
  }
}

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