Open Notify vs Spacenews

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

Open Notify logoOpen NotifyAerospace & Astrodynamics · Local subprocess (stdio)Open Notify MCP — ISS position + people in space56GoodAuth: not declaredSpacenews logoSpacenewsAerospace & Astrodynamics · Local subprocess (stdio)Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)52GoodAuth: not declared

Verdict: choose Open Notify for aerospace & astrodynamics work as a local process; choose Spacenews for aerospace & astrodynamics as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Open Notify logoChoose Open Notify when

  • You need dedicated capabilities in the Aerospace & Astrodynamics domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like iss_now, astros.
Explore Open Notify

Spacenews logoChoose Spacenews when

  • You need dedicated capabilities in the Aerospace & Astrodynamics domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like get_articles, search_articles, get_blogs.
Explore Spacenews

Feature & specification comparison

Rows where the two servers differ are marked.

SpecOpen Notify logoOpen NotifySpacenews logoSpacenews
CategoryAerospace & AstrodynamicsAerospace & Astrodynamics
Quality signal56/100 · Good52/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars00
Directory activity 2 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
Tools23

Tools & capabilities

Open Notify tools 2

  • iss_nowCurrent latitude / longitude of the International Space Station.
  • astrosPeople currently in space — name + craft (ISS / Tiangong / etc.).

Spacenews tools 3

  • get_articlesFetch the latest spaceflight news articles sorted by publication date. Returns title, summary, URL, image, and source.
  • search_articlesSearch spaceflight news articles by keyword. Returns matching articles with title, summary, URL, and publication date.
  • get_blogsFetch the latest spaceflight blog posts sorted by publication date. Returns title, summary, URL, image, and source.

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.

Open Notify

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "open-notify": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-open-notify"
      ]
    }
  }
}

Spacenews

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "spacenews": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-spacenews"
      ]
    }
  }
}

Frequently asked questions

Open Notify is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. Spacenews belongs to Aerospace & Astrodynamics and uses a local stdio subprocess. Pick Open Notify for aerospace & astrodynamics work and Spacenews for aerospace & astrodynamics.

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.

Open Notify has no declared pricing — check the project's own site. Spacenews has no declared pricing — check the project's own site. 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 open-notify and spacenews as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Open Notify has a quality signal of 56/100 (Good) with 2 views, 0 installs and 0 GitHub stars. Spacenews has 52/100 (Good) with 1 views, 0 installs and 0 GitHub stars.