MCP server

Horizons Nasa

io.github.pipeworx-io/horizons-nasa

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

JPL Horizons MCP.

From the maker's README NASA JPL Horizons MCP — solar-system body ephemerides (planets, moons, asteroids, comets, spacecraft). Keyless. Source

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

46

Token cost

About 26,893 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http horizons-nasa https://gateway.pipeworx.io/horizons-nasa/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.horizons-nasa]
url = "https://gateway.pipeworx.io/horizons-nasa/mcp"

Gemini CLI

{"mcpServers":{"horizons-nasa":{"httpUrl":"https://gateway.pipeworx.io/horizons-nasa/mcp"}}}

Cursor

{"mcpServers":{"horizons-nasa":{"url":"https://gateway.pipeworx.io/horizons-nasa/mcp"}}}

VS Code

{"servers":{"horizons-nasa":{"type":"http","url":"https://gateway.pipeworx.io/horizons-nasa/mcp"}}}

Antigravity

agy mcp add horizons-nasa https://gateway.pipeworx.io/horizons-nasa/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"horizons-nasa","server_url":"https://gateway.pipeworx.io/horizons-nasa/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"horizons-nasa","server_url":"https://gateway.pipeworx.io/horizons-nasa/mcp"}

Tools

• ephemeris ~242 tokens
  Generate an ephemeris (default observer table).
• lookup ~60 tokens
  Resolve an object name → SPK id.
• observers ~141 tokens
  Convenience: ephemeris with table_type=OBSERVER.
• vectors ~147 tokens
  Convenience: ephemeris with table_type=VECTORS.

Browse

• GitHub tools
• GitHub and code hosting

Related MCP servers

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Badge for your README

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