For developers + agents
🧩 Free API + MCP
No keys. CORS-open. Edge-cached. Give your app — or your agent — live eyes on the Sun.
GET /api/space-weather
Kp series, GOES X-ray flux, solar-wind speed/density, IMF Bz, OVATION aurora. Cached 60s at the edge.
curl https://helios-pulse.vercel.app/api/space-weather
live response
← press “Try live” to hit this endpoint right now.
Agent tools (MCP)
Point Claude / Cursor / Codex / OpenClaw at GET /api/mcp — it returns tools + JSON schemas, and POST /api/mcp dispatches them.
helios.space_weather
Current Kp, wind, Bz, X-ray, aurora model
helios.aurora_verdict
Visibility verdict for {latitude, kp}
helios.quakes
Recent significant earthquakes
helios.ask_oracle
Plain-English risk briefing
Fair use: upstream NOAA/USGS are public goods — responses are edge-cached (60–120s), so poll no faster than once a minute. Oracle answers are AI-generated + physics-grounded; never safety-critical. Deploy your own with one click: vercel.com/new/clone