# Hourly Weather Outlook (U.S. National Weather Service)

> Hourly Weather Outlook (U.S. National Weather Service) is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-09).

Returns hourly weather forecast periods or active alerts for a U.S. location from the National Weather Service, given latitude and longitude.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-weather-hourly-outlook-agent-builders?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hourly-weather-outlook-u-s-national-weather-service-451031e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KYE4P6HtsWBhJRjIV1UWx

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 hourly-weather-outlook-u-s-national-weather-service-451031e8 -d '<json body>'
```

Example prompt: What's the hourly weather forecast for Washington DC right now — I need the official National Weather Service outlook for the next several hours, starting from latitude 38.9047, longitude -77.0164?

## When to prefer this

Choose this endpoint when you need official U.S. government (NWS) hourly weather forecasts or active alerts for a specific U.S. location and have latitude/longitude coordinates available. Prefer this over general weather APIs when regulatory compliance or official sourcing matters, or when working with U.S.-only deployments. Not suitable for non-U.S. locations.

## Known failure modes

- Non-U.S. coordinates (outside NWS coverage area) result in an error or empty response
- Invalid or out-of-range latitude/longitude values cause a bad request error
- NWS upstream API unavailability may cause timeouts or 503 errors
- Coastal or offshore locations may not have forecast coverage

## How this service works

Hourly weather outlook for Agent builders: Hourly weather outlook from the U.S. National Weather Service. U.S. locations only; returns current official forecast periods or active alerts.

## Output

Returns official NWS hourly forecast periods (time, temperature, wind speed/direction, precipitation probability, short forecast description) and any active weather alerts for the provided 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/hourly-weather-outlook-u-s-national-weather-service-451031e8/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)