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HALOWERK kartenwerk Flood Exposure
x402
HALOWERK kartenwerk Flood Exposure is a paid API for AI agents from karte.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).
Assesses flood risk for a geographic point by combining USGS stream gauge data, nearby watercourse geometry, and terrain depression analysis
Price / call$0.006
Success—
StatusUnknown
How this service works
HALOWERK kartenwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns a flood exposure assessment for the given point including: nearby USGS stream gauge readings and distances, proximity to watercourses and water bodies (with closest-point geometry), terrain depression analysis indicating low-lying areas that could accumulate water, and aggregated flood risk indicators derived from these sources
Example use cases
Property flood risk screening
“I'm looking at buying a house at 30.2672° N, 97.7431° W in Austin — can you check its flood exposure, scanning for stream gauges within 10 km and watercourses within 1.5 km?”
Insurance underwriting location check
“We need to assess flood risk for a site at 38.9072° N, 77.0369° W before underwriting a policy — look at gauges within 20 km and use a 500 m depression scan radius.”
Urban planning flood vulnerability
“Can you evaluate flood exposure for a proposed development site at 29.9511° N, 90.0715° W in New Orleans, checking watercourses within 3 km and terrain depressions in a 2000 m window?”
Technical details
Endpoint
POSThttps://karte.halowerk.com/v1/flood-exposureWhen to prefer
Choose this endpoint when you need a multi-signal flood risk assessment combining real-time stream gauge levels, physical watercourse proximity, and terrain depression analysis for a specific coordinate. It is particularly suited for property-level due diligence, insurance risk scoring, or site suitability checks in the United States where USGS gauge coverage is strong. Prefer this over static flood map lookups when you need dynamic gauge data combined with terrain and geometry analysis in a single call.
Side effects
- No USGS stream gauges found within the specified gauge_radius_km — returns empty gauge data
- Point falls over ocean or outside USGS coverage area
- Watercourse geometry fetch times out when water_radius_km is too large
- Invalid coordinates outside WGS 84 bounds
- terrain DEM data unavailable for remote or polar locations
- Payment failure via x402 protocol before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lat | number | Latitude, WGS 84. |
| lon | number | Longitude, WGS 84. |
| gauge_radius_km | number | How far around the point to look for USGS stream gauges. |
| water_radius_km | number | How far around the point to look for watercourses and water bodies. Kept small on purpose: full geometry is fetched so the closest point on the feature can be computed, and a wide box does not fit the time budget. |
| sink_scan_radius_m | number | Half-width of the square grid sampled for terrain depressions around the point. |
Tags
x402
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