# DataPulse

> NOAA HRRR 3km weather forecast API for AI agents and developers.

## API

- GET /v1/forecast?lat={lat}&lon={lon}&hours={1-18} — $0.50/query via x402
- GET /tryit?lat={lat}&lon={lon} — free demo (5/day per IP)
- POST /checkout — Stripe credit packs for API key access

## Payment

AI agents: x402 protocol, $0.50/query, Base (USDC) or Solana (USDC)
Humans: Stripe one-time credit packs (Starter $29, Pro $89, Enterprise $249)

## Coverage

NOAA HRRR: contiguous United States (CONUS), 3km resolution, hourly cycles.
Forecast horizon: up to 18 hours. Run lag: ~2 hours from cycle time.

## Response

Variables: temperature (2m), dew point (2m), wind speed+direction (10m),
accumulated precipitation, precipitation rate, total cloud cover.

## Docs

- https://datapulse.waltsoft.net/agents.md