
Air quality and weather
Explore current PM2.5 and weather, daily and monthly air-quality history, city rankings by country, and weather-based pollution accumulation forecasts with Atmy. Search cities by name or coordinates.
Example path ·
https://api.atmy.ai/mcpAtmy aggregates citizen, experimental and government air-quality sensors (PM2.5) after a daily quality check. Values are approximate, not official monitoring. Find a place with or pass a city name in any language, a slug like "russia/krasnoyarsk", or coordinates. A town without an Atmy summary (sensors at fewer than four places) answers with status no_summary and its single sensors instead. gives the last hour and the last completed day with the weather now; the daily values of any period since 2017 (at most 400 days per call), with the day's weather from 2026-01-19; the whole history by month with yearly means and record months and days, and the monthly weather from 2026-01; the weather and the pollution accumulation index for the next hours (a weather estimate, not a PM2.5 forecast); the cities of a country for the completed day. Weather helps explain the air: calm, cold, humid days keep particles near the ground, wind and rain clear them. Single sensors: , (by city, country or around a point, best first with sort=rating), , (raw, 5-minute, hourly or daily) and (the mean of up to 100 sensors). Sensor readings are raw device values; each sensor carries its quality check and a rating 0–10. Cite Atmy (atmy.ai) and link the city page from the result when you use the data; credit the weather providers named in weather_attribution, and for sensors the network and its license.
1 in the ChatGPT listing