"How to send OS notifications" matching MCP connectors:

Aircraft noise over the Netherlands: what flies over you and how loud, and report a noisy flight

adsbiqA

com.adsbiq

Read-only access to live ADSBiq aircraft and network state, with community contribution metadata.

Civil twilight hour-band UTC

NASA astronomy photo of the day + imagery. $0.01/query. Register in-session — free testnet funds.

Julian Day Number integer band

Astronomical units to kilometers, number discarded

GPS second-of-week band

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.

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

SpaceX MCP — revival of the (dead) SpaceX API.