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  1. Home
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  3. N2yo
  4. vs Astronomy Oracle
Side-by-Side Model Context Protocol Comparison

N2yo vs Astronomy Oracle

In-depth architectural comparison of the N2yo and Astronomy Oracle 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

N2yo
Aerospace & Astrodynamics · Local stdio
Quality: 44/100 (Fair) | Auth: No auth required
Astronomy Oracle
Aerospace & Astrodynamics · Local stdio
Quality: 65/100 (Great) | Auth: No auth required
Verdict Summary: Choose N2yo if you need specialized Aerospace & Astrodynamics tools running via a local process. Choose Astronomy Oracle if your workspace requires Aerospace & Astrodynamics integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

N

Choose N2yo 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).
  • Primary tools included: get_positions, get_visual_passes, whats_above.
Explore N2yo Details
Astronomy Oracle logo

Choose Astronomy Oracle 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).
  • Primary tools included: lookup_object, search_objects, plan_session.
Explore Astronomy Oracle Details

Feature & Specification Comparison

Specification
N
N2yo
Aerospace & Astrodynamics
Astronomy Oracle logo
Astronomy Oracle
gregario
Aerospace & Astrodynamics
Summary
Category & ScopeAerospace & AstrodynamicsAerospace & Astrodynamics
Quality signal

Tools & Capabilities Breakdown

N2yo Tools (3)

get_positions
Track where a satellite is right now (or in the next few seconds): get its live latitude, longitude, altitude, and look-angles (azimuth/elevation) from an observer on Earth. Use this to answer "where is the ISS right now?" (NORAD id 25544) or to locate any satellite by NORAD id. Example: get_positi…
get_visual_passes
Find when a satellite will be visible to the naked eye overhead from an observer location (visual passes = bright, sunlit passes against a dark sky). Returns start/max/end times, elevation, azimuths, brightness magnitude, and duration. Use this for "when can I see the ISS pass over?" Example: get_v…
whats_above
List what satellites are currently above a location on Earth, within a given radius of the observer's zenith. Use this to answer "what satellites are overhead right now?" Optionally filter by category (e.g. 52 = Starlink, 18 = amateur radio, 1 = brightest). Example: whats_above({ lat: 40.71, lon: -…

Astronomy Oracle Tools (3)

lookup_object

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).

N2yo Configuration
mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "n2yo": {
      "command": "npx",
      "args": [
        "-y",
        "n2yo"
      ]
    }
  }
}
Astronomy Oracle Configuration
mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "gregario-astronomy-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "astronomy-oracle"
      ]
    }
  }
}

Frequently Asked Questions

N2yo is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. In contrast, Astronomy Oracle belongs to Aerospace & Astrodynamics using local stdio subprocess. Select N2yo when you need capabilities focused on aerospace & astrodynamics and Astronomy Oracle when you require tools for aerospace & astrodynamics.

More alternatives to N2yoMore alternatives to Astronomy OracleAerospace & Astrodynamics category hubCanonical compare URL

Related MCP Server Comparisons

Popular comparisons with N2yo

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  • Astronomy MCP Server logoN2yo vs Astronomy MCP Server
  • IPGeolocation.io MCP Server logoN2yo vs IPGeolocation.io MCP Server

Popular comparisons with Astronomy Oracle

44/100 (Fair)
65/100 (Great)
Transport ProtocolLocal Subprocess (stdio)Local Subprocess (stdio)
Auth RequirementNo auth requiredNo auth required
Pricing ModelFree / Open SourceFree / Open Source
Required Env VarsNone requiredNone required
Compatible Clients
Claude DesktopCursorWindsurfClineVS Code
Claude DesktopCursorWindsurfClineVS Code
Install path signalnpx · lownpx · high
Engagement & Health 0 views 0 copies 0 upvotes 0 stars 6 views 1 copies 0 upvotes 3 stars
Verified / OfficialCommunity ListingCommunity Listing
Open full listingView N2yo ListingView Astronomy Oracle Listing
Look up a celestial object by Messier number (e.g. M31), NGC/IC designation (e.g. NGC7000), or common name (e.g. Andromeda Galaxy). Optionally compute visibility from a given location and time.
search_objects
Search and filter the celestial object catalog by type, constellation, magnitude, angular size, or catalog membership. Returns a formatted table of matching objects sorted by brightness.
plan_session
Generate an observing session plan for a given location and date. Returns the best celestial objects to observe grouped by time window (evening, midnight, pre-dawn), scored by observability.
Orbit Sentinel MCP logo
Astronomy Oracle vs Orbit Sentinel MCP
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  • Astronomy MCP Server logoAstronomy Oracle vs Astronomy MCP Server
  • N2YO MCP — wraps the N2YO Satellite Tracking REST API (n2yo.com)
    Accurate astronomical catalog data and observing session planner. 13,000+ deep-sky objects from OpenNGC with deterministic visibility, rise/transit/set, and alt/az calculations. npx astronomy-oracle