{"uid":"cap_2dKGp539e8QWILxVvmA_r","slug":"space-weather-intelligence-kp-index-forecast-76e72b5d","name":"Space Weather Intelligence — Kp-Index Forecast","description":"Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.","url":"https://space-weather.use.x402atlas.com/forecast","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"days":{"type":"integer","default":3,"maximum":3,"minimum":1,"description":"Number of 24-hour periods from retrieval time"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["operation","schema_version","query","issued_at","periods","source","stale","source_age_seconds","warnings"],"properties":{"query":{"type":"object","required":["days"],"properties":{"days":{"type":"integer","maximum":3,"minimum":1,"description":"Applied forecast-day window"}},"description":"Normalized query identity after applying the default day window","additionalProperties":false},"stale":{"type":"boolean","description":"True only when a validated cached snapshot was used"},"_atlas":{"type":"object","required":["docs"],"properties":{"docs":{"type":"string","format":"uri","maxLength":512,"description":"Documentation URL for this bridge"},"related":{"type":"array","items":{"type":"object","required":["bridge","url","docs","summary"],"properties":{"url":{"type":"string","format":"uri","maxLength":512,"description":"Related route URL"},"docs":{"type":"string","format":"uri","maxLength":512,"description":"Related bridge documentation URL"},"bridge":{"type":"string","maxLength":64,"description":"Related bridge name"},"summary":{"type":"string","maxLength":256,"description":"Short capability summary"}},"description":"One related Atlas route","additionalProperties":false},"maxItems":3,"description":"Bounded related Atlas routes"}},"description":"Atlas documentation and related-route metadata added after deployment","additionalProperties":false},"source":{"type":"object","required":["name","products","retrieved_at"],"properties":{"name":{"type":"string","description":"Official source organization"},"products":{"type":"array","items":{"type":"string","description":"Product identifier"},"description":"Fixed normalized NOAA SWPC products"},"retrieved_at":{"type":"string","format":"date-time","description":"Time the served normalized snapshot was retrieved"}},"description":"Official NOAA SWPC provenance for the served normalized snapshot","additionalProperties":false},"periods":{"type":"array","items":{"type":"object","required":["valid_at","kp","noaa_scale","kind"],"properties":{"kp":{"type":"number","maximum":9,"minimum":0,"description":"Forecast planetary K index"},"kind":{"enum":["observed","estimated","predicted"],"type":"string","description":"Exact normalized source observed classification"},"valid_at":{"type":"string","format":"date-time","description":"Official period valid time"},"noaa_scale":{"type":["string","null"],"description":"Official NOAA scale value when supplied"}},"additionalProperties":false},"description":"Unique periods in ascending valid-time order; 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I want to know if geomagnetic activity will be high enough for aurora viewing."},{"title":"Satellite operations risk assessment","prompt":"Get me the NOAA Kp-index forecast for the next 3 days so I can assess geomagnetic storm risk for our satellite operations."},{"title":"Daily space weather briefing","prompt":"Fetch today's NOAA SWPC geomagnetic Kp forecast — just 1 day — and tell me whether conditions are calm, active, or stormy."}],"resultDescription":"A JSON object containing normalized Kp-index forecast periods (up to 3 days), each labeled as observed, estimated, or predicted, along with the forecast issuance timestamp, a stale cache flag, source age in seconds, any active warnings, and the applied day-window query parameters.","failureModes":["NOAA SWPC source unavailable — stale cached data returned with stale:true flag","Invalid days parameter (outside 1–3 range) — validation error","Payment failure (x402) — 402 response requiring USDC payment","Upstream data delayed — source_age_seconds may be elevated"],"whenToPreferThis":"Choose this endpoint when you need a structured, normalized multi-period Kp-index forecast (1–3 days) from NOAA SWPC with clear period labels (observed/estimated/predicted). Prefer it over raw NOAA feeds when you need clean JSON, built-in staleness detection, and bounded forecast windows. Use sibling endpoints for current real-time conditions or alert messages rather than the forward-looking forecast.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:35:51.070Z","isFirstParty":false}