jpl horizons mcp for Claude Code

io.github.mrfentmen/jpl-horizons-mcp

JPL Horizons: NASA ephemerides for planets, moons, asteroids and comets - keyless.

client:Claude Code transport:stdio runtime:npm

Install jpl horizons mcp in Claude Code

run in your project directory

claude mcp add jpl-horizons-mcp -- npx -y @mrfentmen/jpl-horizons-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs