Latest hourly air quality measurements (NO2, PM10, PM2.5, ozone) from about 3,00
Latest hourly air quality measurements (NO2, PM10, PM2.5, ozone) from about 3,000 official monitoring stations in Europe (European Environment Agency, up-to-date unvalidated data, refreshed hourly): nearest stations to a location, or all stations of a country, with station type (traffic, background, industrial), area, value, unit and measurement hour. Use it for health, travel and environment questions. EEA, CC BY 4.0.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
279 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://opendata402.com/v1/air/eu
| Category | Everything else |
|---|---|
| Provider host | opendata402.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.001 | 279 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"lat": "52.37",
"lon": "4.89",
"radius_km": "15"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"country": {
"description": "ISO country code instead of a location.",
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"lat": {
"description": "Latitude.",
"pattern": "^-?[0-9]{1,2}(\\.[0-9]{1,6})?$",
"type": "string"
},
"limit": {
"description": "Max stations (default 10, max 20).",
"pattern": "^([1-9]|1[0-9]|20)$",
"type": "string"
},
"lon": {
"description": "Longitude.",
"pattern": "^-?[0-9]{1,3}(\\.[0-9]{1,6})?$",
"type": "string"
},
"pollutant": {
"description": "Only stations measuring this pollutant.",
"enum": [
"no2",
"pm10",
"pm25",
"o3"
],
"type": "string"
},
"radius_km": {
"description": "Search radius in km (default 25, max 200).",
"pattern": "^([1-9]|[1-9][0-9]|1[0-9][0-9]|200)$",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}