Space Weather Prediction Center (SWPC) Data Service
SWPC publishes solar wind, geomagnetic, X-ray flux, aurora forecast, radiation storm, and coronal mass ejection products through a static-file data service organised by format. JSON, text, and image feeds refresh on intervals from one minute (real-time solar wind) to daily summaries. No authentication required; products power aviation, satellite, power grid, GPS, and HAM radio operators. A modernization of the JSON catalog landed 2026-03-31 with old products deprecated 2026-04-30.
Space Weather Prediction Center (SWPC) Data Service is one of 12 APIs that NOAA — National Oceanic and Atmospheric Administration publishes on the APIs.io network.
Tagged areas include Space Weather, Solar, Geomagnetic, Aurora, and Real-Time. The published artifact set on APIs.io includes API documentation and a changelog.