"Services or tools available for free without requiring an API key" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Real-time planetary signal engine and Model Context Protocol (MCP) server for autonomous AI agents.
MCP for SpaceTime Server APIs
Anonymous public tools for FlightSweeper. See the published agent boundary before use.
ECAC PER: DCOMP, official-source lookup. Platform-hosted, pay per query with prepaid credit.
Space weather: Kp index, solar flare flux, alerts. $0.01/query, free testnet funds.
Rocket launch schedule: SpaceX, Falcon, Electron. $0.01/query, free testnet funds.
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)
Launches MCP — wraps Launch Library 2 API (ll.thespacedevs.com, free, no auth)
SpaceX MCP — wraps SpaceX API v4 (free, no auth)
Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)
MAST (Mikulski Archive for Space Telescopes) — Hubble/JWST/Kepler/TESS
In-flight WiFi: provider by flight, airline or tail, measured speeds, Starlink rollout.
Moon phases, moon signs, full/new moon dates 1900-2100, moonrise/moonset for any coordinates.
Drone-sector market intelligence for AI agents: free briefings and profiles, licenced tracker data.
Live flight radar: real-time position of any aircraft transmitting ADS-B right now. Search by regist
Factual sky for AIs: ISS, auroras, archives. Never confuses unexplained with extraterrestrial.
Live space data for AI agents - rocket launches, ISS passes, launch news. Free, no auth.
Free no-key search over CASA, FAA, EASA & ICAO aviation regulations. By Deepsky (deepskyai.com).
N2YO MCP — wraps the N2YO Satellite Tracking REST API (n2yo.com)
