Is the CycleCalcs Astronomy MCP server free to use?

Yes. CycleCalcs Astronomy is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the CycleCalcs Astronomy MCP server free to use?

Yes. CycleCalcs Astronomy is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

CycleCalcs Astronomy

Astronomy: sun, moon, planet, eclipse, twilight and star position calculations.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

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claude_desktop_config.json

{
  "mcpServers": {
    "cyclecalcs-astronomy": {
      "command": "npx",
      "args": [
        "-y",
        "https://www.cyclecalcs.com/api/mcp.html"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

CycleCalcs Astronomy is a 🚀 Aerospace & Astrodynamics MCP server listed on AllMCPs. Astronomy: sun, moon, planet, eclipse, twilight and star position calculations.

We couldn’t automatically pull a README for this listing from cyclecalcs.com, so the summary above comes from its listing details. To install it, use the one-click buttons or copy the config from the Quick Install section above, then open the source repository for full setup instructions, configuration options, and the tools it exposes over MCP.

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Frequently Asked Questions about CycleCalcs Astronomy

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "cyclecalcs-astronomy": { "command": "npx", "args": ["-y", "CycleCalcs Astronomy"] } }

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Technical Specs & Signals

CategoryAerospace & Astrodynamics

41Quality signal: Fair · 41/100How this signal is calculated ▾

Server availability25/25

Verified ownership0/20

Documentation & tools15/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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More in 🚀 Aerospace & Astrodynamics →Alternatives to CycleCalcs Astronomy →Install in Claude Desktop Install in Cursor Install in VS Code