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Karte Halowerk Air Quality Forecast
x402
Karte Halowerk Air Quality Forecast is a paid API for AI agents from karte.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Returns hourly CAMS European air-quality ensemble forecasts (CO, NO2, NO, O3, PM2.5, PM10, SO2) for a point in the DACH and Central Europe region, up to 48 hours ahead.
Price / call$0.005
Success—
StatusUnknown
How this service works
Returns hourly surface concentrations from the CAMS European air-quality ensemble for a point in the cached DACH and Central Europe area. Available pollutants are CO, NO2, NO, O3, PM2.5, PM10 and SO2. Values come from the nearest 0.1 degree model cell and are labelled as a regional forecast rather than a street-level sensor reading. The local cutout is refreshed independently of paid calls, so Copernicus processing latency is not passed to the caller.
Output
An array of hourly forecast records for the requested location, each containing timestamps and surface concentration values for the selected pollutants (from CO, NO2, NO, O3, PM2.5, PM10, SO2), derived from the nearest 0.1-degree CAMS ensemble model cell. Values represent regional model forecasts, not street-level sensor readings.
Example use cases
Outdoor event pollution check
“We're planning an outdoor festival in Zurich at 47.4° N, 8.5° E this weekend — can you pull the hourly PM2.5 and O3 forecast for the next 48 hours so we can decide if air quality is acceptable?”
Commute health alert for cyclists
“I cycle to work in Vienna every day — can you check the NO2 and PM10 forecast at 48.2° N, 16.37° E for the next 12 hours so I know if I should wear a mask tomorrow morning?”
Air quality monitoring dashboard
“For my environmental dashboard covering Berlin, can you fetch all seven pollutants at 52.52° N, 13.4° E for the next 24 hours so I can display the regional air quality forecast?”
Technical details
Endpoint
POSThttps://karte.halowerk.com/v1/air-qualityWhen to prefer
Choose this endpoint when you need sub-hourly air-quality concentration forecasts specifically within the DACH and Central Europe region (Germany, Austria, Switzerland, Czech Republic, etc.) without incurring Copernicus processing latency. It is ideal for regional-scale environmental assessments, health advisory apps, event planning, and routing decisions where street-level precision is not required. Prefer alternatives if you need global coverage, real-time sensor readings, or street-level granularity.
Side effects
- Coordinates outside the DACH/Central Europe bounding box (lat 45–56, lon 5–18) result in an error
- Requesting more than 48 hours or fewer than 1 hour returns a validation error
- Invalid pollutant name in the array returns a schema validation error
- If the cached CAMS cutout is stale due to upstream Copernicus delays, data may be older than expected
- Network or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hours | integer | Number of hourly forecast values. |
| latitude | number | Latitude inside the cached DACH and Central Europe area. |
| longitude | number | Longitude inside the cached DACH and Central Europe area. |
| pollutants | array | Optional subset; default returns all seven pollutants. |
Tags
x402
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