Current air quality
API · /airquality-api
Air Quality API
healthy
4,017 Subscribers
Current air quality and hourly forecast for any location — European and US AQI plus PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide, carbon monoxide, dust and UV index. Powered by Open-Meteo. Just pass a latitude and longitude.
api.oanor.com/airquality-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 177 ms
- Server probes · 24h
- Subscribers
- 4,017
- active
- Total calls
- 40
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 4,000 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- No credit card
- 4,000 calls/month, 2 req/s
- Current AQI + PM2.5/PM10 only
- Non-commercial use
Basic
€11.00 /month
- 80,000 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 80,000 calls/month, 8 req/s
- All pollutants: O3, NO2, SO2, CO, dust, UV
- European & US AQI
- Commercial use included
Pro
€34.00 /month
- 350,000 calls / month
- 20 requests / second
- Hard cap (429 above quota, no overage)
- 350,000 calls/month, 20 req/s
- Hourly forecast unlocked
- Bulk multi-location queries
- Email support
Mega
€89.00 /month
- 1,500,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- 1,500,000 calls/month, 50 req/s
- 99.9% uptime SLA
- Priority support
- Full forecast + all endpoints
Built by
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api.oanor.com/dotenv-api
Climate Projections API
Long-term climate projections as an API — daily, downscaled output from high-resolution CMIP6 global climate models for any location on Earth, from 1950 all the way to 2050. See how temperature, precipitation, wind and humidity are projected to change under a warming climate: get the daily projection over any date range (choose your variables and climate model), or per-year aggregates — annual mean temperature and total precipitation — that reveal the warming trend at a place over the coming decades. Seven HighResMIP models are available (EC_Earth3P_HR, MPI_ESM1_2_XR, MRI_AGCM3_2_S, CMCC_CM2_VHR4 and more). From planning and agriculture to risk assessment, sustainability and climate research, it turns climate-model data into a simple coordinate-in, projection-out call. A climate-projection resource — distinct from real-time weather forecasts, historical weather observations and Köppen climate classification. Open data from Open-Meteo (CC BY 4.0), based on the CMIP6 HighResMIP ensemble.
api.oanor.com/climateprojections-api
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api.oanor.com/climatetrace-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Air Quality API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Air Quality API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Air Quality API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Air Quality API cost?
Air Quality API has a free tier with 100 calls / month. Paid plans start at €11.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Air Quality API GDPR-compliant?
All requests to Air Quality API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/airquality-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/airquality-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/airquality-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/airquality-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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