DataMAINTAINED10 tokens / call

Air Quality API

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.

Start free — 500 tokens / mo →See all plans

No credit card requiredAccess to 20+ APIsCancel anytime

response.json

{
  "ok": true,
  "latitude": 40.71,
  "longitude": -74,
  "station": {
    "id": 664,
    "name": "Bklyn - PS274",
    "locality": "New York-Northern New Jersey-Long Island",
    "country": "US",
    "latitude": 40.694401,
    "longitude": -73.928596,
    "distance_km": 6.3,
    "provider": "AirNow",
    "reference_monitor": true,
    "mobile": false,
    "timezone": "America/New_York",
    "parameters": [
      "pm25"
    ],
    "last_updated": "2026-09-12T06:00:00Z",
    "active": true,
    "license": "US Public Domain",
    "attribution": "Unknown Governmental Organization"
  },
  "stale": false,
  "aqi_us": {
    "value": 33,
    "category": "Good",
    "dominant_pollutant": "pm25",
    "by_pollutant": {
      "pm25": 33
    },
    "note": "US EPA AQI computed from the latest particulate readings using the 24-hour breakpoints (2024 PM2.5 scale); gases are not included."
  },
  "measurements": [
    {
      "parameter": "pm25",
      "display_name": "PM2.5",
      "value": 5.9,
      "unit": "µg/m³",
      "last_updated": "2026-09-12T06:00:00Z",
      "age_hours": 0.6,
      "stale": false
    }
  ],
  "nearby_stations": [
    {
      "id": 662,
      "name": "Division Street",
      "distance_km": 0.6,
      "last_updated": "2020-02-19T16:00:00Z"
    },
    {
      "id": 642,
      "name": "PS 19",
      "distance_km": 2.6,
      "last_updated": "2017-12-18T10:00:00Z"
    },
    {
      "id": 648,
      "name": "Bklyn - PS 314",
      "distance_km": 7.7,
      "last_updated": "2026-09-12T06:00:00Z"
    },
    {
      "id": 628,
      "name": "Maspeth",
      "distance_km": 9.2,
      "last_updated": "2026-09-12T06:00:00Z"
    }
  ]
}

5endpoints

10tokens / call

99.9%uptime SLA

Lowavg latency

Why developers pick this API

Production-ready

Production Ready

Battle-tested infrastructure with a 99.9% uptime SLA. Rate limits are generous, responses are consistent.

Simple Integration

Standard REST + JSON. Works with any HTTP client. Copy-ready code snippets in 4 languages.

One Key, 20+ APIs

Your DataAndAPIs subscription unlocks every API on the platform — anime, finance, sports, and more.

Code snippets

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

5endpoints

RESTarchitecture

1key for all APIs

Fully typed responses — auto-completion in your IDE
Tracks the API in lockstep — new endpoints land same day
One key works across 20+ APIs on the platform

import axios from 'axios';

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

🔒 Subscribe to unlock the live API URL

Developer playground

Explore the endpoints

Browse request parameters and inspect live example responses.

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' }
});

Pricing

One subscription. Every API.

Tokens unlock this API and 20+ others on DataAndAPIs. Switch APIs any time — we promote.

FREE

$0/mo

500 tokens / month

Access to all APIs
Tokens reset monthly
Community support

Start free

The things that actually block the upgrade.

Ship Air Quality API this afternoon.

500 free tokens. No card. Plus 20+ other APIs on the same key.

Get API key →Browse all APIs