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Foundry NWS Weather Alert Window Composite
x402
Foundry NWS Weather Alert Window Composite is a paid API for AI agents from foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Returns NWS hourly forecast periods and active alerts for a US location within a specified future time window, filtered by user-defined weather thresholds (wind, temperature, precipitation).
Price / call$0.008
Success—
StatusUnknown
How this service works
Pay-per-request evidence and data tools: CSV validation and reconciliation, DNS/email configuration evidence, and bounded official weather, earthquake, vehicle, company and study records. Exact USDC prices, explicit JSON contracts and source provenance. No mailbox, ownership, medical or safety guarantees.
Output
A JSON object containing: the joined forecast windows with weather status and overlapping NWS alert IDs; the list of current active NWS alerts; individual hourly forecast periods; applied threshold values; the requested time window boundaries; source URLs with retrieval timestamps and cache ages; attribution and terms URL; and flags for truncation and forecast coverage completeness.
Example use cases
Outdoor event safety check
“I'm planning an outdoor concert at 39.7456° N, 97.0892° W this afternoon — can you pull the NWS forecast and alerts for the next 8 hours and tell me if wind will stay under 40 kph, temps between 10°C and 35°C, and rain chance stays below 50%?”
Drone flight window finder
“I need a safe window to fly my drone near latitude 37.33, longitude -122.03 in the next 6 hours starting 2 hours from now — check NWS alerts and forecast for that window and flag anything where wind goes above 20 kph or precipitation probability exceeds 20%.”
Cold-weather threshold alert
“Can you check the NWS weather alerts and hourly forecast for the next 24 hours at lat 44.98, lon -93.27, and tell me if temperatures are expected to drop below -10°C or if there are any active winter weather alerts?”
Technical details
Endpoint
POSThttps://foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev/v2/official/nws-weather-alert-window-compositeWhen to prefer
Choose this endpoint when you need a composite view combining NWS active alerts AND hourly forecast data for a US coordinate, filtered by specific numeric thresholds, with explicit source provenance and JSON contracts. Prefer it over raw NWS API calls when you need threshold-based window detection (safe/unsafe periods) in a single pay-per-request call with normalized output. Not suitable for non-US locations or when you need real-time sensor data rather than NWS model forecasts.
Side effects
- Coordinates outside US NWS coverage area (e.g. non-US lat/lon) may return no forecast periods or empty alerts
- NWS upstream API unavailability may cause partial or failed responses
- duration_hours + start_hours_from_now exceeding NWS forecast horizon returns incomplete coverage (forecast_coverage_complete: false)
- Invalid latitude/longitude values (out of -90/90 or -180/180 range) rejected by schema validation
- No alerts does not guarantee safe conditions — limitations array explicitly notes this
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| latitude | number | |
| longitude | number | |
| max_wind_kph | number | |
| duration_hours | integer | |
| max_temperature_c | number | |
| min_temperature_c | number | |
| start_hours_from_now | integer | |
| max_precipitation_probability | number |
Output
Schema · Response
{
"type": "json",
"example": {
"route": "nws-weather-alert-window-composite",
"result": {
"sources": [
{
"url": "https://api.weather.gov/gridpoints/TOP/31,80/forecast/hourly",
"kind": "HOURLY_FORECAST",
"updated_at": null,
"retrieved_at": "2026-09-07T00:00:00Z",
"cache_age_seconds": 0
},
{
"url": "https://api.weather.gov/alerts?active=true&point=39.7456%2C-97.0892&limit=100",
"kind": "CURRENT_POINT_ALERTS",
"updated_at": null,
"retrieved_at": "2026-09-07T00:00:00Z",
"cache_age_seconds": 0
}
],
"location": {
"latitude": 39.7456,
"longitude": -97.0892
},
"terms_url": "https://www.weather.gov/disclaimer",
"thresholds": {
"max_wind_kph": 25,
"max_temperature_c": 30,
"min_temperature_c": 5,
"max_precipitation_probability": 30
},
"alert_scope": "CURRENT_ACTIVE_ONLY",
"attribution": "NOAA / National Weather Service; normalized by Foundry; no endorsement",
"limitations": [
"Synthetic example only. No alerts or matching weather does not prove safe conditions."
],
"current_alerts": [],
"joined_windows": [
{
"end": "2026-09-07T12:00:00Z",
"start": "2026-09-07T00:00:00Z",
"weather_status": "UNKNOWN",
"overlapping_alert_ids": []
}
],
"weather_periods": [],
"alerts_truncated": false,
"requested_window": {
"end": "2026-09-07T12:00:00Z",
"start": "2026-09-07T00:00:00Z"
},
"timing_unknown_alert_ids": [],
"forecast_coverage_complete": false
},
"observed_at": "2026-09-06T00:00:00Z"
}
}Tags
x402
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