Space weather G/R/S scales (NOAA SWPC)

CEV-OS / Data API / Space weather G/R/S scales (NOAA SWPC)

CEV-OS Data API · last updated 2026-11-04. Status: live. Version 1.

Use this when you need NOAA SWPC geomagnetic (G), radio-blackout (R) and solar-radiation (S) scales for the last 72 hours plus recent alerts.

What it is

NOAA Space Weather Prediction Center G/R/S scales (highest in the last 72 hours) and recent alert/watch/warning items. Global; no geography. US Government work. Informational; not an official warning from cev-os.

Endpoints

REST: GET /v1/space-weather on https://api.cev-os.com
Legacy host (same service): GET /v1/space-weather on https://cev-os.com
MCP tool: get_space_weather on https://mcp.cev-os.com/mcp

Parameters

None. This product takes no query parameters.

Example request

No account and no key. Query values below are the examples or defaults from the registry. An optional free key (header x-api-key) raises the limits; create one at https://cev-os.com/#api_keys after signing in with a verified email (Google sign-in is already verified).

curl -s "https://api.cev-os.com/v1/space-weather"

Example response

Every /v1 response is a JSON envelope (schema_version, product, timestamps, license, attribution, data). The registry example is the data member:

{
  "scales": {
    "G": 2,
    "R": 0,
    "S": 0,
    "active": 1,
    "headline": "WATCH: Geomagnetic Storm G2",
    "window_hours": 72
  },
  "count": 1,
  "alerts": [
    {
      "title": "WATCH: Geomagnetic Storm G2",
      "scale": "G2",
      "kind": "Geomagnetic storm",
      "issued": "2026-11-01T12:00:00.000Z",
      "active": true
    }
  ]
}

Update frequency

TRIPWIRE refreshes SWPC every 10 min; Data API caches 5 min.

Public cache: 300 seconds (Cache-Control: public, max-age=300).

Sources, license and usage

License status: cleared. NOAA SWPC is US Government work (public domain). Cite NOAA.

Underlying sources
Source	License	commercialOk	Terms
NOAA Space Weather Prediction Center	US Government work (public domain)	true	—

Attribution (show this wherever you display the data):

NOAA Space Weather Prediction Center (https://www.swpc.noaa.gov/).

Privacy class: public-derived. Access: public. Price: free (price is null; pay-per-call is not active).

Disclaimer

Informational. Not an official warning from cev-os. Follow NOAA SWPC for operational space-weather decisions.

Data API hub (all products, limits, license notes)
MCP Registry listing com.cev-os/data
OpenAPI 3.1
Machine product list: /v1/products

Reference data, not investment advice.