"Supabase (open source Firebase alternative)" matching MCP connectors:

FlyItalyADSBAOAuth

com.flyitalyadsb

Live and historical aircraft tracking from an open ADS-B/MLAT network, with a live map in chat

ECAC PER: DCOMP, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Open Notify MCP — ISS position + people in space

NASA MCP — wraps NASA Open APIs (api.nasa.gov)

Swedish space & astronomy: ISS passes, aurora forecasts, space weather, rocket launches, moon.