Space Weather Intelligence · Forecast

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://space-weather.use.x402atlas.com/forecast", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://space-weather.use.x402atlas.com/forecast?days=3" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "issued_at": null,
  "operation": "kp-forecast",
  "periods": [
    {
      "kind": "predicted",
      "kp": 5,
      "noaa_scale": "G1",
      "valid_at": "2026-08-04T18:00:00Z"
    },
    {
      "kind": "predicted",
      "kp": 4.67,
      "noaa_scale": null,
      "valid_at": "2026-08-04T21:00:00Z"
    },
    {
      "kind": "estimated",
      "kp": 3,
      "noaa_scale": null,
      "valid_at": "2026-08-05T00:00:00Z"
    }
  ],
  "query": {
    "days": 3
  },
  "schema_version": "noaa-swpc-normalized-v1",
  "source": {
    "name": "NOAA Space Weather Prediction Center",
    "products": [
      "noaa_planetary_k_index_forecast"
    ],
    "retrieved_at": "2026-08-04T15:47:00Z"
  },
  "source_age_seconds": 0,
  "stale": false,
  "warnings": [
    "NOAA SWPC does not publish an issuance timestamp for this product; issued_at is null and retrieved_at is not an issuance time.",
    "Missing forecast periods are not filled."
  ]
}