# DataPulse NOAA HRRR Weather Forecast

> DataPulse NOAA HRRR Weather Forecast is a paid API for AI agents from datapulse.waltsoft.net, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-16).

Returns NOAA HRRR 3km-resolution weather forecast (temperature, humidity, wind, precipitation, cloud cover) for any CONUS lat/lon coordinate for up to 18 hours ahead.

## Facts

- Endpoint: GET https://datapulse.waltsoft.net/v1/forecast?utm_source=zero.xyz
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/datapulse-noaa-hrrr-weather-forecast-d3622dba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QQ9qMrslinQm5Ql26FZk7

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 datapulse-noaa-hrrr-weather-forecast-d3622dba
```

Example prompt: What's the weather forecast for the next 6 hours at latitude 40.71 and longitude -74.01? I need temperature, wind, humidity, and precipitation.

## When to prefer this

Choose this endpoint when you need high-resolution (3km), hyperlocal hourly weather forecasts for specific GPS coordinates within the continental United States. It is ideal for applications requiring precise point-level forecasts rather than city-level approximations — such as drone operations, precision agriculture, logistics routing, or event planning. Prefer this over general weather APIs when NOAA HRRR model accuracy and sub-city spatial resolution matter.

## Known failure modes

- Coordinates outside CONUS coverage (~21–47°N lat, ~60–135°W lon) will return an error or no data
- Invalid or non-numeric lat/lon strings cause request rejection
- Hours parameter outside 1–18 range may return an error or be clamped to default
- NOAA HRRR model update delays may cause stale or temporarily unavailable forecast data
- Payment failure (insufficient USDC) blocks the request under x402 protocol

## How this service works

NOAA HRRR 3km weather forecast at any CONUS coordinate. Returns temperature, humidity, wind, precipitation, and cloud cover for up to 18 forecast hours.

## Output

Returns a structured hourly weather forecast for the specified CONUS coordinate, including temperature, relative humidity, wind speed and direction, precipitation amount, and cloud cover percentage, for each requested forecast hour (up to 18 hours ahead), sourced from the NOAA HRRR 3km model.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "string",
       "description": "Latitude in decimal degrees (CONUS coverage: ~21 to 47)"
      },
      "lon": {
       "type": "string",
       "description": "Longitude in decimal degrees (CONUS coverage: ~-135 to -60)"
      },
      "hours": {
       "type": "string",
       "description": "Forecast hours ahead, 1-18 (default 1). One query = one hour."
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/datapulse-noaa-hrrr-weather-forecast-d3622dba/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from datapulse.waltsoft.net](https://www.zero.xyz/host/datapulse.waltsoft.net/llms.txt)