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Ephemeris MCP server

scottchronicity/ephemeris-mcp

Precision astronomical ephemeris and planetary positions via the Swiss Ephemeris.

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Install Ephemeris in Claude Code

Claude Code
claude mcp add scottchronicity-ephemeris -- uvx ephemeris-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "scottchronicity-ephemeris": {
      "command": "uvx",
      "args": [
        "ephemeris-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Ephemeris MCP server do?

Precision astronomical ephemeris and planetary positions via the Swiss Ephemeris.

Is the Ephemeris MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Ephemeris run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Ephemeris to Claude Code?

Run: claude mcp add scottchronicity-ephemeris -- uvx ephemeris-mcp

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