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Karte Emergency Coverage
x402
Karte Emergency Coverage is a paid API for AI agents from karte.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).
Returns the nearest emergency facility of each type (hospitals, defibrillators, fire stations, etc.) with distance and details, facility count within a radius, and density per km² for a given location
Price / call$0.005
Success—
StatusUnknown
How this service works
HALOWERK kartenwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
A JSON response containing, for each requested facility type: the single nearest facility with its name, coordinates, and distance; the total count of that facility type within the search radius; and the density (facilities per km²). Hospitals include a flag indicating whether an emergency department is tagged. Defibrillators include their access class (public, private, etc.) and whether they are indoors, enabling agents to filter for genuinely available AEDs.
Example use cases
Event venue safety assessment
“I'm running an outdoor festival at 48.8566° N, 2.3522° E and need to know the nearest hospital with a proper emergency department, the closest accessible defibrillator that isn't locked indoors, and the nearest fire station — all within 2 kilometres, plus how many of each exist in that radius.”
Remote property emergency risk check
“We're considering buying a property at 53.4808° N, 2.2426° W — can you tell me how far the nearest A&E hospital and fire station are, and what the density of emergency facilities looks like within a 3km radius? I want to understand the emergency response situation before making an offer.”
Urban planning emergency infrastructure audit
“I need an emergency coverage analysis for the area around 52.4862° N, 1.8904° W — how many hospitals with emergency departments, defibrillators with public access, and fire stations are within 1.5km, and what's their density per square kilometre?”
Technical details
Endpoint
POSThttps://karte.halowerk.com/v1/emergency-coverage?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured summary of emergency infrastructure around a specific point — combining nearest-facility lookup, count, and density in a single call. It is particularly valuable when the practical availability of a facility matters (e.g. hospital must have an ER, defibrillator must be publicly accessible and not locked indoors). Prefer it over generic OSM queries when you need these semantic filters applied automatically.
Side effects
- Coordinates outside areas mapped in OpenStreetMap may return sparse or zero results with no error
- Very small radii may return zero facilities of a given type
- Hospital emergency department presence depends on OSM tagging completeness — untagged hospitals may not be flagged correctly
- Defibrillator access class may be absent if not tagged in OSM, leading to null access values
- Invalid coordinate format or missing required fields returns a 4xx error
- Network timeout or upstream OSM query failure returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lat | number | |
| lon | number | |
| types | array | Which facility types to include. All by default. |
| radius_km | number |
Tags
x402
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