Air Quality API

Data

10 tokens / call

Latest air-quality readings — PM2.5, PM10, ozone, NO2, SO2, CO and more — from the nearest government and research-grade monitoring station to any coordinates, with a computed US EPA AQI (value, category, dominant pollutant), per-pollutant timestamps and staleness flags, a nearby-station directory, station detail and a pollutant catalogue. Open data via OpenAQ under each station's own government licence (public domain, CC BY, ODC-BY, UK OGL and similar; non-commercial stations excluded), edge-cached for 15 minutes.

Quick Start

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Available Endpoints

Request Parameters

API URL

Please subscribe to see the API URL

Headers

X-Api-Key

Please subscribe to see the actual API URL

Target:

Client:

import axios from 'axios';

const url = '{API_URL}';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});