karte.halowerk.com
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.
Offering
- Provider
- karte.halowerk.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Weather And Environment
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://karte.halowerk.com/v1/air-quality- MIME type
- Not provided
- First seen
- 2026-10-16T01:58:26.121Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
}
]Observed health
- Status
- Healthy
- Latest latency
- 316 ms
- Average latency
- 319 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 5 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"hours": {
"default": 24,
"description": "Number of hourly forecast values.",
"maximum": 48,
"minimum": 1,
"type": "integer"
},
"latitude": {
"description": "Latitude inside the cached DACH and Central Europe area.",
"maximum": 56,
"minimum": 45,
"type": "number"
},
"longitude": {
"description": "Longitude inside the cached DACH and Central Europe area.",
"maximum": 18,
"minimum": 5,
"type": "number"
},
"pollutants": {
"description": "Optional subset; default returns all seven pollutants.",
"items": {
"enum": [
"co",
"no2",
"no",
"o3",
"pm2_5",
"pm10",
"so2"
],
"type": "string"
},
"maxItems": 7,
"minItems": 1,
"type": "array",
"uniqueItems": true
}
},
"required": [
"latitude",
"longitude"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"hours": {
"default": 24,
"description": "Number of hourly forecast values.",
"maximum": 48,
"minimum": 1,
"type": "integer"
},
"latitude": {
"description": "Latitude inside the cached DACH and Central Europe area.",
"maximum": 56,
"minimum": 45,
"type": "number"
},
"longitude": {
"description": "Longitude inside the cached DACH and Central Europe area.",
"maximum": 18,
"minimum": 5,
"type": "number"
},
"pollutants": {
"description": "Optional subset; default returns all seven pollutants.",
"items": {
"enum": [
"co",
"no2",
"no",
"o3",
"pm2_5",
"pm10",
"so2"
],
"type": "string"
},
"maxItems": 7,
"minItems": 1,
"type": "array",
"uniqueItems": true
}
},
"required": [
"latitude",
"longitude"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}