"Ko-fi" matching MCP connectors:

Civil twilight hour-band UTC

Space weather: Kp index, solar flare flux, alerts. $0.01/query, free testnet funds.

Julian Day Number integer band

Astronomical units to kilometers, number discarded

Arcseconds to degrees, number discarded

Arcminutes to degrees, number discarded

sidereal day fraction band

Mach number to m/s at STP, number discarded

Julian Day integer band

inHg to kilopascals, number discarded

Parsecs to light-years, number discarded

Light-years to kilometers, number discarded

Space Feeds MCP.

Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)

Spaceflight News MCP.

Open Notify MCP — ISS position + people in space

N2YO MCP — wraps the N2YO Satellite Tracking REST API (n2yo.com)

FlightAware MCP — wraps FlightAware AeroAPI v4 (aeroapi.flightaware.com)

CelesTrak MCP — satellite orbital elements (TLE / GP data) for any tracked object.

TLE MCP — satellite tracking via Two-Line Element sets (tle.ivanstanojevic.me, free, no auth)