# NWS Rain Probability Window (U.S. Locations)

> NWS Rain Probability Window (U.S. Locations) is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Returns the current official U.S. National Weather Service rain probability forecast periods or active precipitation alerts for a given U.S. latitude/longitude.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-weather-rain-window-buyers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nws-rain-probability-window-u-s-locations-ac25a7e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y5FzKTr1Z3OEpfJFN1tD0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nws-rain-probability-window-u-s-locations-ac25a7e3 -d '<json body>'
```

Example prompt: What's the rain probability forecast for Washington DC right now — use latitude 38.9047 and longitude -77.0164 to get the official NWS precipitation windows?

## When to prefer this

Choose this endpoint when you need official U.S. government rain probability forecasts for a specific geographic coordinate, especially when accuracy and official NWS data are required. Prefer this over third-party weather APIs when U.S.-only coverage is acceptable and authoritative forecast periods are needed.

## Known failure modes

- Non-U.S. coordinates will fail or return no results since the NWS only covers U.S. locations
- Invalid or out-of-range latitude/longitude values will cause an error
- NWS API downtime may result in no data being returned
- Coastal or edge coordinates may not map to a valid NWS forecast grid point

## How this service works

Rain probability window for Technology buyers: Rain probability window from the U.S. National Weather Service. U.S. locations only; returns current official forecast periods or active alerts.

## Output

Returns the current official NWS forecast periods with rain probability values and/or any active precipitation alerts for the specified U.S. latitude/longitude coordinates.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "latitude": {
   "type": "number",
   "default": 38.9047
  },
  "longitude": {
   "type": "number",
   "default": -77.0164
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nws-rain-probability-window-u-s-locations-ac25a7e3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)