# OpenWeather, free, GET /data/2.5/air_pollution: Air quality API

> Air Pollution API provides current, forecast and historical air pollution data for any coordinates on the globe.

OpenWeather's air quality API on its Free plan. It costs $0.00 per 1,000 places. It returns 2 of the 6 key fields we check: Particles, Gases.
We rank 94 plans by price. [OpenWeather's £370 monthly plan](https://datacircle.dev/air-quality-apis/openweather/370-monthly-professional-get-data-2-5-air-pollution/llms.txt) is the cheapest paid plan per 1,000 places: $0.00049.
[WeatherAPI.com](https://datacircle.dev/air-quality-apis/weatherapi-com/7-monthly/llms.txt), [Open-Meteo](https://datacircle.dev/air-quality-apis/open-meteo/99-monthly-api-professional-get-v1-air-quality-air-quality/llms.txt) and [Weatherbit](https://datacircle.dev/air-quality-apis/weatherbit/495-monthly-business-get-v2-0-forecast-airquality/llms.txt) are the best air quality API providers in our benchmark.

- This page: https://datacircle.dev/air-quality-apis/openweather/free-get-data-2-5-air-pollution
- [Best air quality API in 2026: pricing compared](https://datacircle.dev/best-air-quality-api.txt)
- Get it: https://openweathermap.org/price
- Request: `GET https://api.openweathermap.org/data/2.5/air_pollution`
- API key: with the plan, on https://openweathermap.org/price
- Its API docs: https://openweathermap.org/api/air-pollution
- Sold by: OpenWeather (https://openweathermap.org)
- Checked: 2026-10-30

## In the answer

- Completeness: 33%
- Particles: ✓
- Gases: ✓

## Price

- $ per 1,000 places: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: Current weather data · 5 day / 3 hour forecast · Forecast air pollution data · Geocoding API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Air Pollution API provides current, forecast and historical air pollution data for any coordinates on the globe.

## Data

- Keep data: no limit
- Use data: All automated self-service plans are provided under the ODbL (Open Database License). Commercial use is allowed. [...] Provide visible attribution to OpenWeather [...] Share-alike applies only if you: Build a reusable dataset from OpenWeather data, Restructure, combine, or enrich it, Operate your own weather dataset or API based on stored OpenWeather data, Make that dataset or API available outside your organisation [...] If such a database is distributed externally, it must be offered under the same ODbL license.

## Plan

- Pay: $0
- You get: 1,000,000 requests a month
- Enough for: 1,000,000 calls a month

## Rate limit

- Per second: 1

## The call

- You send: lat, lon
- Method: GET
- Path: /data/2.5/air_pollution

## About the plan

- Plan: Free
- Who can get it: anyone

## The 12 fields the plan's answer can hold

latitude, longitude, date and time, air quality index, carbon monoxide, nitrogen monoxide, nitrogen dioxide, ozone, sulphur dioxide, ammonia, PM2.5, PM10

## OpenWeather's plans (7)

- [OpenWeather, free, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/free-get-data-2-5-air-pollution/llms.txt): $0.00 per 1,000, 33% complete
- [OpenWeather, free for students, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/free-for-students-get-data-2-5-air-pollution/llms.txt): $0.00 per 1,000, 33% complete
- [OpenWeather, £30 monthly, Startup, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/30-monthly-startup-get-data-2-5-air-pollution/llms.txt): $0.004 per 1,000, 33% complete
- [OpenWeather, £140 monthly, Developer, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/140-monthly-developer-get-data-2-5-air-pollution/llms.txt): $0.0019 per 1,000, 33% complete
- [OpenWeather, £370 monthly, Professional, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/370-monthly-professional-get-data-2-5-air-pollution/llms.txt): $0.00049 per 1,000, 33% complete
- [OpenWeather, £1,200 monthly, Expert, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/1200-monthly-expert-get-data-2-5-air-pollution/llms.txt): $0.00053 per 1,000, 33% complete
- [OpenWeather, contact us, Enterprise, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/contact-us-enterprise-get-data-2-5-air-pollution/llms.txt): 33% complete

## OpenWeather's calls for this API (2)

- `GET /data/2.5/air_pollution`: [OpenWeather, free, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/free-get-data-2-5-air-pollution/llms.txt)
- `GET /data/2.5/air_pollution/forecast`: [OpenWeather, free, GET /data/2.5/air_pollution/forecast](https://datacircle.dev/air-quality-apis/openweather/free-get-data-2-5-air-pollution-forecast/llms.txt)

## OpenWeather's APIs (3)

- [OpenWeather: weather forecast API pricing, 8 plans](https://datacircle.dev/weather-forecast-apis/openweather/free-get-data-2-5-forecast/llms.txt)
- [OpenWeather: air quality API pricing, 7 plans, GET /data/2.5/air_pollution](https://datacircle.dev/air-quality-apis/openweather/free-get-data-2-5-air-pollution/llms.txt)
- [OpenWeather: current weather API pricing, 8 plans](https://datacircle.dev/current-weather-apis/openweather/free-get-data-2-5-weather/llms.txt)

## OpenWeather: air quality API alternatives

- [WeatherAPI.com, $75 yearly](https://datacircle.dev/air-quality-apis/weatherapi-com/75-yearly/llms.txt): $0.0021 per 1,000, 33% complete, live
- [Botoi, $199 monthly](https://datacircle.dev/air-quality-apis/botoi/199-monthly/llms.txt): $0.0066 per 1,000, 67% complete, live
- [Weatherbit, $5,700 yearly, Business, GET /v2.0/forecast/airquality](https://datacircle.dev/air-quality-apis/weatherbit/5700-yearly-business-get-v2-0-forecast-airquality/llms.txt): $0.0078 per 1,000, 50% complete
- [Seniverse, CNY 6,000 pack, Extra visits 100,000,000 (额外访问量), GET /v3/air/now.json](https://datacircle.dev/air-quality-apis/seniverse/cny-6000-pack-extra-visits-100000000-get-v3-air-now-json/llms.txt): $0.009 per 1,000, 33% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-30.

- https://openweathermap.org
- https://openweathermap.org/api
- https://openweathermap.org/api/air-pollution
- https://openweathermap.org/faq
- https://openweathermap.org/full-price
- https://openweathermap.org/price