Astronomy MCP Server vs Claude Task Master

A side-by-side look at the Astronomy MCP Server and Claude Task Master MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Astronomy MCP Server logoAstronomy MCP ServerAerospace & AstrodynamicsOffline observational astronomy: positions, rise/set, moon phases, eclipses, and seasons.55GoodAuth: no auth requiredClaude Task Master logoClaude Task MasterDeveloper Tools · Local subprocess (stdio)AI-powered task management system for AI-driven development. Features PRD parsing, task expansion, multi-provider support (Claude, OpenAI, Gemini, Perplexity, xAI), and selective tool loading for optimized context usage.61GoodAuth: api key required

Verdict: choose Astronomy MCP Server for aerospace & astrodynamics work; choose Claude Task Master for developer tools as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Astronomy MCP Server logoChoose Astronomy MCP Server when

  • You need dedicated capabilities in the Aerospace & Astrodynamics domain.
  • Its auth model fits you: No auth required.
  • You want tools like astronomy_get_sky_position, astronomy_get_rise_set, astronomy_get_moon_phase.
Explore Astronomy MCP Server

Claude Task Master logoChoose Claude Task Master when

  • You need dedicated capabilities in the Developer Tools domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: ANTHROPIC_API_KEY, OPENAI_API_KEY, GOOGLE_API_KEY, PERPLEXITY_API_KEY, XAI_API_KEY, OPENROUTER_API_KEY, MISTRAL_API_KEY, TASK_MASTER_TOOLS.
Explore Claude Task Master

Feature & specification comparison

Rows where the two servers differ are marked.

SpecAstronomy MCP Server logoAstronomy MCP ServerClaude Task Master logoClaude Task Master
CategoryAerospace & AstrodynamicsDeveloper Tools
Quality signal55/100 · Good61/100 · Good
Install commandNot confirmed yetConfirmed
Transport—Local subprocess (stdio)
AuthNo auth requiredAPI key required
PricingFreeBYOK (pay the provider)
Required env varsNone listedANTHROPIC_API_KEYOPENAI_API_KEYGOOGLE_API_KEYPERPLEXITY_API_KEYXAI_API_KEYOPENROUTER_API_KEYMISTRAL_API_KEYTASK_MASTER_TOOLS
Verified ownerCommunity listingCommunity listing
GitHub stars328,270
Directory activity 6 views 0 installs 0 upvotes 10 views 0 installs 0 upvotes
Tools7Not listed

Tools & capabilities

Astronomy MCP Server tools 7

  • astronomy_get_sky_positionApparent position of one body or named star: RA/Dec, alt/az, ecliptic, magnitude, phase, Sun elongation, constellation
  • astronomy_get_rise_setRise, set, and transit times for a body, plus civil, nautical, and astronomical twilight for the Sun
  • astronomy_get_moon_phaseIlluminated fraction, phase name, synodic age, and the next four quarter phases
  • astronomy_find_eventsNext eclipses, equinoxes, solstices, moon quarters, oppositions, conjunctions, greatest elongations, or apsides
  • astronomy_list_visibleWhat's up now: naked-eye bodies (and optional bright stars) above the horizon, ranked, with a sky-condition gate
  • astronomy_get_ephemerisSmall-body or spacecraft ephemeris from JPL Horizons (opt-in)
  • astronomy_get_satellite_passesVisible satellite passes from a CelesTrak element set propagated with SGP4 (opt-in)

Claude Task Master tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Astronomy MCP Server

No confirmed install command for Astronomy MCP Server yet — follow the setup steps linked from its listing page rather than a guessed package name.

Claude Task Master

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "eyaltoledano-claude-task-master": {
      "command": "npx",
      "args": [
        "-y",
        "task-master-ai"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "YOUR_ANTHROPIC_API_KEY_HERE",
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
        "GOOGLE_API_KEY": "YOUR_GOOGLE_API_KEY_HERE",
        "PERPLEXITY_API_KEY": "YOUR_PERPLEXITY_API_KEY_HERE",
        "XAI_API_KEY": "YOUR_XAI_API_KEY_HERE",
        "OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE",
        "MISTRAL_API_KEY": "YOUR_MISTRAL_API_KEY_HERE",
        "TASK_MASTER_TOOLS": "YOUR_TASK_MASTER_TOOLS_HERE"
      }
    }
  }
}

Frequently asked questions

Astronomy MCP Server is categorized under Aerospace & Astrodynamics and uses an install path we have not confirmed yet. Claude Task Master belongs to Developer Tools and uses a local stdio subprocess. Pick Astronomy MCP Server for aerospace & astrodynamics work and Claude Task Master for developer tools.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Astronomy MCP Server has no confirmed install command yet — follow its own setup instructions.

Astronomy MCP Server is listed as free. Auth: no auth required. Claude Task Master is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add astronomy-mcp-server and eyaltoledano-claude-task-master as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Astronomy MCP Server has a quality signal of 55/100 (Good) with 6 views, 0 installs and 3 GitHub stars. Claude Task Master has 61/100 (Good) with 10 views, 0 installs and 28,270 GitHub stars.