Tornado alert API: every tornado warning and tornado watch currently active anywhere in the United States — affected zones, severity, urgency, and full alert text — as normalized JSON. Use for safety-notification agents, logistics-halt automation, and severe-weather news agents. Public-domain government data, refreshed every 2 minutes. An empty feature list means no tornado activity is in progress, not an upstream failure.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.004000 USDC | 0x8503...9432 |