{
  "x402Version": 2,
  "id": 1218,
  "slug": "1218",
  "resource": "https://space-weather.use.x402atlas.com/forecast",
  "description": "Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "category": "science",
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "days": 3
          },
          "type": "http"
        },
        "output": {
          "example": {
            "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."
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "additionalProperties": false,
                "properties": {
                  "days": {
                    "default": 3,
                    "description": "Number of 24-hour periods from retrieval time",
                    "maximum": 3,
                    "minimum": 1,
                    "type": "integer"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": false,
                "properties": {
                  "_atlas": {
                    "additionalProperties": false,
                    "description": "Atlas documentation and related-route metadata added after deployment",
                    "properties": {
                      "docs": {
                        "description": "Documentation URL for this bridge",
                        "format": "uri",
                        "maxLength": 512,
                        "type": "string"
                      },
                      "related": {
                        "description": "Bounded related Atlas routes",
                        "items": {
                          "additionalProperties": false,
                          "description": "One related Atlas route",
                          "properties": {
                            "bridge": {
                              "description": "Related bridge name",
                              "maxLength": 64,
                              "type": "string"
                            },
                            "docs": {
                              "description": "Related bridge documentation URL",
                              "format": "uri",
                              "maxLength": 512,
                              "type": "string"
                            },
                            "summary": {
                              "description": "Short capability summary",
                              "maxLength": 256,
                              "type": "string"
                            },
                            "url": {
                              "description": "Related route URL",
                              "format": "uri",
                              "maxLength": 512,
                              "type": "string"
                            }
                          },
                          "required": [
                            "bridge",
                            "url",
                            "docs",
                            "summary"
                          ],
                          "type": "object"
                        },
                        "maxItems": 3,
                        "type": "array"
                      }
                    },
                    "required": [
                      "docs"
                    ],
                    "type": "object"
                  },
                  "issued_at": {
                    "description": "Always null because this source publishes no issuance timestamp",
                    "format": "date-time",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "operation": {
                    "const": "kp-forecast",
                    "description": "Stable route operation",
                    "type": "string"
                  },
                  "periods": {
                    "description": "Unique periods in ascending valid-time order; missing periods are not filled",
                    "items": {
                      "additionalProperties": false,
                      "properties": {
                        "kind": {
                          "description": "Exact normalized source observed classification",
                          "enum": [
                            "observed",
                            "estimated",
                            "predicted"
                          ],
                          "type": "string"
                        },
                        "kp": {
                          "description": "Forecast planetary K index",
                          "maximum": 9,
                          "minimum": 0,
                          "type": "number"
                        },
                        "noaa_scale": {
                          "description": "Official NOAA scale value when supplied",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "valid_at": {
                          "description": "Official period valid time",
                          "format": "date-time",
                          "type": "string"
                        }
                      },
                      "required": [
                        "valid_at",
                        "kp",
                        "noaa_scale",
                        "kind"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "query": {
                    "additionalProperties": false,
                    "description": "Normalized query identity after applying the default day window",
                    "properties": {
                      "days": {
                        "description": "Applied forecast-day window",
                        "maximum": 3,
                        "minimum": 1,
                        "type": "integer"
                      }
                    },
                    "required": [
                      "days"
                    ],
                    "type": "object"
                  },
                  "schema_version": {
                    "const": "noaa-swpc-normalized-v1",
                    "description": "Pinned NOAA SWPC normalization contract",
                    "type": "string"
                  },
                  "source": {
                    "additionalProperties": false,
                    "description": "Official NOAA SWPC provenance for the served normalized snapshot",
                    "properties": {
                      "name": {
                        "description": "Official source organization",
                        "type": "string"
                      },
                      "products": {
                        "description": "Fixed normalized NOAA SWPC products",
                        "items": {
                          "description": "Product identifier",
                          "type": "string"
                        },
                        "type": "array"
                      },
                      "retrieved_at": {
                        "description": "Time the served normalized snapshot was retrieved",
                        "format": "date-time",
                        "type": "string"
                      }
                    },
                    "required": [
                      "name",
                      "products",
                      "retrieved_at"
                    ],
                    "type": "object"
                  },
                  "source_age_seconds": {
                    "description": "Age in whole seconds of the route's controlling freshness timestamp; retrieval time controls alerts and forecast",
                    "minimum": 0,
                    "type": "integer"
                  },
                  "stale": {
                    "description": "True only when a validated cached snapshot was used",
                    "type": "boolean"
                  },
                  "warnings": {
                    "description": "Freshness, missing-component, provenance, and interpretation limitations",
                    "items": {
                      "description": "Actionable warning",
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "operation",
                  "schema_version",
                  "query",
                  "issued_at",
                  "periods",
                  "source",
                  "stale",
                  "source_age_seconds",
                  "warnings"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "tags": [
        "space-weather-forecast",
        "kp-index-forecast",
        "space-weather",
        "geomagnetic",
        "noaa-swpc"
      ]
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "space-weather.use.x402atlas.com",
  "lastUpdated": "2026-09-15T06:32:42.887Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-09-15T06:32:42.756Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "space-weather.use.x402atlas.com",
    "manifest_name": "space-weather.use.x402atlas.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}