ISS Tracker MCP

Live ISS tracking: position, speed, daylight state, ground tracks, TLE and overhead checks — keyless.

Keyless — no signup, no API key, no environment variables.

Install

npx -y iss-tracker-mcp

Or add it to your MCP client:

{
  "mcpServers": {
    "iss-tracker-mcp": { "command": "npx", "args": ["-y", "iss-tracker-mcp"] }
  }
}

Tools

| Tool | What it does | |---|---| | current_position | Where the ISS is right now: lat/lon, altitude, speed, sunlit or dark | | position_track | Recent ground track sampled over the past N minutes | | visibility_report | Daylight/eclipse forecast for the next hours | | list_satellites | Which satellites the API tracks | | satellite_tle | Current orbital elements (TLE) | | overhead_check | Is the ISS above a lat/lon now, and how far away |

Example

ISS (id 25544) at 2026-10-27 02:14:07 UTC:
  Position: 37.0954, -82.5839
  Altitude: 419.6 km · velocity 27,583 km/h
  Visibility: daylight · footprint radius 2,271 km

Notes

Uses the keyless WhereTheISS.at API. All satellite tools default to the ISS (NORAD 25544) but accept any satellite id the API covers. Times are UTC.

Licence

MIT