What is the key difference between World Weather Online and CycleCalcs Astronomy?

World Weather Online belongs to the Aerospace & Astrodynamics category with local stdio execution, while CycleCalcs Astronomy belongs to the Aerospace & Astrodynamics category with cloud HTTP/SSE execution.

How do I install World Weather Online or CycleCalcs Astronomy in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are World Weather Online and CycleCalcs Astronomy free or paid?

World Weather Online operates under a Free / Open Source model (No auth required). CycleCalcs Astronomy operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

World Weather Online lists 0 tools with 0 views and 0 GitHub stars. CycleCalcs Astronomy lists 0 tools with 0 views and 0 GitHub stars.

Can I use both World Weather Online and CycleCalcs Astronomy together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install World Weather Online or CycleCalcs Astronomy in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are World Weather Online and CycleCalcs Astronomy free to use, or do they require API keys?

World Weather Online is listed under a Free / Open Source model with No auth required . CycleCalcs Astronomy operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both World Weather Online and CycleCalcs Astronomy at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both world-weather-online and cyclecalcs-astronomy as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, World Weather Online has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. CycleCalcs Astronomy holds a Quality Score of 41 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

World Weather Online vs CycleCalcs Astronomy

In-depth architectural comparison of the World Weather Online and CycleCalcs Astronomy MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

World Weather Online

Aerospace & Astrodynamics · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

CycleCalcs Astronomy

Aerospace & Astrodynamics · Remote HTTP/SSE

Quality: 41/100 (Fair) | Auth: No auth required

Verdict Summary: Choose World Weather Online if you need specialized Aerospace & Astrodynamics tools running via a local process. Choose CycleCalcs Astronomy if your workspace requires Aerospace & Astrodynamics integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose World Weather Online when:

You need dedicated capabilities in the Aerospace & Astrodynamics domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore World Weather Online Details

Choose CycleCalcs Astronomy when:

You need dedicated capabilities in the Aerospace & Astrodynamics domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore CycleCalcs Astronomy Details

Feature & Specification Comparison

Specification	W World Weather Online Aerospace & Astrodynamics	C CycleCalcs Astronomy Aerospace & Astrodynamics
Summary	Global weather API: forecasts, historical data, marine, ski, astronomy and timezone.	Astronomy: sun, moon, planet, eclipse, twilight and star position calculations.
Category & Scope	Aerospace & Astrodynamics	Aerospace & Astrodynamics
Quality signal

Tools & Capabilities Breakdown

World Weather Online Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

CycleCalcs Astronomy Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

World Weather Online Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "world-weather-online": {
      "command": "npx",
      "args": [
        "-y",
        "world-weather-online"
      ]
    }
  }
}

CycleCalcs Astronomy Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "cyclecalcs-astronomy": {
      "url": "https://www.cyclecalcs.com/api/mcp.html"
    }
  }
}

Frequently Asked Questions

World Weather Online is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. In contrast, CycleCalcs Astronomy belongs to Aerospace & Astrodynamics using remote streaming HTTP/SSE transport. Select World Weather Online when you need capabilities focused on aerospace & astrodynamics and CycleCalcs Astronomy when you require tools for aerospace & astrodynamics.

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