"ClickHouse: A fast open-source columnar database management system" matching MCP connectors:

Price a US private jet charter: search airports, check runway limits, quote a flight.

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

NASA JPL Horizons — solar-system body ephemerides

Open Notify MCP — ISS position + people in space

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

NASA/JPL Solar System Dynamics + CNEOS MCP.