Atmy air quality

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PM2.5 now, daily history, forecast and country rankings for 300+ cities from citizen sensors.

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get_air_quality Read-only

PM2.5 now in a city (mean of the latest reading of each eligible sensor, at most 60 minutes old) with its US EPA category and the weather now (temperature, humidity, pressure, wind, clouds, precipitation), plus the last completed day from the Atmy Data Hub with its weather. Pass city or lat/lon.

latnumber

Latitude; with lon, the nearest city with an Atmy summary within 50 km.

lonnumber

Longitude.

citystring

City name in any of the site languages, a slug like "russia/krasnoyarsk", or the Atmy city id.

langstring

Language of city and country names and of the page link; default en.

countrystring

Country name, to tell apart cities with the same name.

Tools (6)

get_air_quality

read-only

Argument	Type	Description
lat	number	Latitude; with lon, the nearest city with an Atmy summary within 50 km.
lon	number	Longitude.
city	string	City name in any of the site languages, a slug like "russia/krasnoyarsk", or the Atmy city id.
lang	string	Language of city and country names and of the page link; default en.
country	string	Country name, to tell apart cities with the same name.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "maximum": 90,
      "minimum": -90,
      "description": "Latitude; with lon, the nearest city with an Atmy summary within 50 km."
    },
    "lon": {
      "type": "number",
      "maximum": 180,
      "minimum": -180,
      "description": "Longitude."
    },
    "city": {
      "type": "string",
      "description": "City name in any of the site languages, a slug like \"russia/krasnoyarsk\", or the Atmy city id."
    },
    "lang": {
      "enum": [
        "en",
        "ru",
        "de",
        "fr",
        "es",
        "it",
        "pt-BR",
        "pl",
        "cs",
        "hu",
        "ro",
        "bg",
        "sr",
        "id",
        "hi",
        "ja",
        "zh",
        "uz",
        "kk",
        "ky",
        "tg",
        "az",
        "ka",
        "hy",
        "tr"
      ],
      "type": "string",
      "description": "Language of city and country names and of the page link; default en."
    },
    "country": {
      "type": "string",
      "description": "Country name, to tell apart cities with the same name."
    }
  },
  "additionalProperties": false
}

get_air_quality_history

Daily PM2.5 of a city from the Atmy Data Hub (UTC days, sensors after the quality check) with the day's weather from 2026-01-19 (mean, lowest and highest temperature, humidity, pressure, wind, strongest gust, clouds): the last days, or any period since 2017 with from/to, at most 400 days per call. For the whole history or records use get_air_quality_monthly first.

read-only

Argument	Type	Description
to	string	Last day YYYY-MM-DD; default the last completed day.
lat	number	Latitude; with lon, the nearest city with an Atmy summary within 50 km.
lon	number	Longitude.
city	string	City name in any of the site languages, a slug like "russia/krasnoyarsk", or the Atmy city id.
days	integer	How many days back from the last completed day; ignored with from/to.
from	string	First day YYYY-MM-DD (2017-01-01 or later).
lang	string	Language of city and country names and of the page link; default en.
country	string	Country name, to tell apart cities with the same name.

get_air_quality_monthly

The whole measurement history of a city from the Atmy Data Hub: PM2.5 per month with the month's weather from 2026-01, yearly means (complete years marked), the dirtiest and cleanest months and days. For questions like "how has the air changed" or "the most polluted month on record".

read-only

Argument	Type	Description
lat	number	Latitude; with lon, the nearest city with an Atmy summary within 50 km.
lon	number	Longitude.
city	string	City name in any of the site languages, a slug like "russia/krasnoyarsk", or the Atmy city id.
lang	string	Language of city and country names and of the page link; default en.
country	string	Country name, to tell apart cities with the same name.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "maximum": 90,
      "minimum": -90,
      "description": "Latitude; with lon, the nearest city with an Atmy summary within 50 km."
    },
    "lon": {
      "type": "number",
      "maximum": 180,
      "minimum": -180,
      "description": "Longitude."
    },
    "city": {
      "type": "string",
      "description": "City name in any of the site languages, a slug like \"russia/krasnoyarsk\", or the Atmy city id."
    },
    "lang": {
      "enum": [
        "en",
        "ru",
        "de",
        "fr",
        "es",
        "it",
        "pt-BR",
        "pl",
        "cs",
        "hu",
        "ro",
        "bg",
        "sr",
        "id",
        "hi",
        "ja",
        "zh",
        "uz",
        "kk",
        "ky",
        "tg",
        "az",
        "ka",
        "hy",
        "tr"
      ],
      "type": "string",
      "description": "Language of city and country names and of the page link; default en."
    },
    "country": {
      "type": "string",
      "description": "Country name, to tell apart cities with the same name."
    }
  },
  "additionalProperties": false
}

get_city_forecast

The next hours of a city: temperature, wind, humidity, precipitation and the pollution accumulation index 0–100 (how strongly the weather keeps particles near the ground). A weather estimate, not a PM2.5 forecast.

read-only

Argument	Type	Description
lat	number	Latitude; with lon, the nearest city with an Atmy summary within 50 km.
lon	number	Longitude.
city	string	City name in any of the site languages, a slug like "russia/krasnoyarsk", or the Atmy city id.
lang	string	Language of city and country names and of the page link; default en.
hours	integer
country	string	Country name, to tell apart cities with the same name.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "maximum": 90,
      "minimum": -90,
      "description": "Latitude; with lon, the nearest city with an Atmy summary within 50 km."
    },
    "lon": {
      "type": "number",
      "maximum": 180,
      "minimum": -180,
      "description": "Longitude."
    },
    "city": {
      "type": "string",
      "description": "City name in any of the site languages, a slug like \"russia/krasnoyarsk\", or the Atmy city id."
    },
    "lang": {
      "enum": [
        "en",
        "ru",
        "de",
        "fr",
        "es",
        "it",
        "pt-BR",
        "pl",
        "cs",
        "hu",
        "ro",
        "bg",
        "sr",
        "id",
        "hi",
        "ja",
        "zh",
        "uz",
        "kk",
        "ky",
        "tg",
        "az",
        "ka",
        "hy",
        "tr"
      ],
      "type": "string",
      "description": "Language of city and country names and of the page link; default en."
    },
    "hours": {
      "type": "integer",
      "default": 24,
      "maximum": 72,
      "minimum": 1
    },
    "country": {
      "type": "string",
      "description": "Country name, to tell apart cities with the same name."
    }
  },
  "additionalProperties": false
}

get_country_ranking

Cities of a country ranked by daily PM2.5 for the last completed day (Atmy Data Hub), most polluted or cleanest first.

read-only

Argument	Type	Description
lang	string	Language of city and country names and of the page link; default en.
limit	integer
order	string
country*	string	Country name in any site language or the ISO code, e.g. "Russia", "Сербия", "DE".
settlements	string	Large cities only, or every settlement with enough sensors.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "country"
  ],
  "properties": {
    "lang": {
      "enum": [
        "en",
        "ru",
        "de",
        "fr",
        "es",
        "it",
        "pt-BR",
        "pl",
        "cs",
        "hu",
        "ro",
        "bg",
        "sr",
        "id",
        "hi",
        "ja",
        "zh",
        "uz",
        "kk",
        "ky",
        "tg",
        "az",
        "ka",
        "hy",
        "tr"
      ],
      "type": "string",
      "description": "Language of city and country names and of the page link; default en."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1
    },
    "order": {
      "enum": [
        "most_polluted",
        "cleanest"
      ],
      "type": "string",
      "default": "most_polluted"
    },
    "country": {
      "type": "string",
      "description": "Country name in any site language or the ISO code, e.g. \"Russia\", \"Сербия\", \"DE\"."
    },
    "settlements": {
      "enum": [
        "cities",
        "all"
      ],
      "type": "string",
      "default": "cities",
      "description": "Large cities only, or every settlement with enough sensors."
    }
  },
  "additionalProperties": false
}

search_cities

Find the cities with an Atmy air-quality summary by name (any language) or country. Returns slugs to pass to the other tools.

read-only

Argument	Type	Description
lang	string	Language of city and country names and of the page link; default en.
limit	integer
query	string	Part of the city name in any site language.
country	string	Country name or ISO code.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "lang": {
      "enum": [
        "en",
        "ru",
        "de",
        "fr",
        "es",
        "it",
        "pt-BR",
        "pl",
        "cs",
        "hu",
        "ro",
        "bg",
        "sr",
        "id",
        "hi",
        "ja",
        "zh",
        "uz",
        "kk",
        "ky",
        "tg",
        "az",
        "ka",
        "hy",
        "tr"
      ],
      "type": "string",
      "description": "Language of city and country names and of the page link; default en."
    },
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 100,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "Part of the city name in any site language."
    },
    "country": {
      "type": "string",
      "description": "Country name or ISO code."
    }
  },
  "additionalProperties": false
}