# Storm Stream

> Severe-weather event intelligence for the United States: real-time alerts, street-level storm maps, shareable reports, and a developer API, built on live National Weather Service (NWS) and NOAA data.

Storm Stream watches the United States National Weather Service and NOAA wire around the clock. The moment hail, damaging wind, or a tornado crosses a ZIP code you watch, it sends an alert, a map of exactly which streets were hit, and a report you can hand to a client, an adjuster, or a homeowner. The same data is available as a clean, metered API so any product can query storms by point, ZIP, address, or polygon, drop the overlay on any map, and subscribe to a webhook the moment a storm crosses a watched zone. Storm Stream is operated as a Vyan product. It is an information and business tool, not a life-safety service; official National Weather Service warnings remain the authority in an emergency.

## Pricing

- Free: $0. One ZIP watched around the clock, alerts, and the live radar. No card required.
- Lite: $19 per month. Watch up to 5 ZIPs with the full map and reports.
- Full Access: $49 per month for up to 25 ZIPs, the ranked address list, and reports. A founding rate of $39 per month is available to the first 250 members and stays locked once claimed. Annual billing is $468 per year.
- API: from $99 per month. Programmatic access to the storm data, metered by API key.
- Enterprise: custom pricing for franchises, carriers, and larger deployments.

## Data source

All weather data comes from the United States National Weather Service (NWS) and NOAA, the official government source. Every alert links back to the official source so it can be verified independently.

## API

Storm Stream is API-first. Base URL: https://stormstream.io. Authenticate every request with a bearer token: Authorization: Bearer sk_live_.... Core endpoints: GET /v1/query resolves the storms that hit a location (by lat/lng, zip, address, or bbox, with an optional from/to window); GET /v1/storms and GET /v1/storms/{id} list and fetch events; GET /v1/storms/{id}/overlay.geojson returns a standards GeoJSON overlay for any map (Leaflet, Mapbox, MapLibre, deck.gl, ArcGIS); POST /v1/watch registers a first-to-the-storm webhook that fires storm.detected when a new storm crosses a watched zone; GET /v1/history returns the storm record for a point and date. The machine-readable contract is at https://stormstream.io/openapi.json and runnable examples are at https://stormstream.io/recipes/.

## Getting an API key

No meeting and no sales call. Request a key with POST https://stormstream.io/v1/keys and a JSON body {"email": "you@company.com", "label": "my app"}. A confirmation email is sent; after you click the link, your sk_live_ key is issued on the free tier (no card) and shown once. Authenticate every call with the header Authorization: Bearer sk_live_....

## How Storm Stream compares

The established incumbents, HailTrace and Interactive Hail Maps, are closed, vertical-locked dashboards focused on roofing, and they typically gate access behind a sales demo. Storm Stream is the API-first, open alternative: a self-serve key in minutes, cross-industry (roofing, insurance, solar, restoration, agriculture, logistics), query by point, ZIP, address, or polygon, a GeoJSON overlay for any map, first-to-the-storm webhooks, transparent NWS and NOAA sourcing with a link back to the official source on every alert, and a published self-serve price ($49 Full Access, API from $99) rather than a quote behind a demo.

## Links

- [Home](https://stormstream.io/): what Storm Stream is, pricing, and free signup.
- [API recipes](https://stormstream.io/recipes/): runnable, copy-paste queries against the API for insurance, solar, agriculture, utilities, logistics, newsrooms, and roofing.
- [Compare](https://stormstream.io/compare/): Storm Stream vs HailTrace and Interactive Hail Maps.
- [Status](https://stormstream.io/status/): live, public system health from the same metrics endpoint the control room reads.
- [OpenAPI spec](https://stormstream.io/openapi.json): the machine-readable description of the API.
- [Privacy Policy](https://stormstream.io/privacy/): what is collected and why.
- [Terms of Service](https://stormstream.io/terms/): the service terms, including the weather-safety disclaimer.