Is AQICN API down?
Current status, daily uptime history and troubleshooting for the AQICN API (Weather).
No, AQICN is up
AQICN answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1898 ms with HTTP 200.
Checking AQICN now…
Sending a request from our server.
AQICN API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- 1898 ms · HTTP 200
- Last up
- Now
We check AQICN's listed URL (https://aqicn.org/api/) once a day. History started when AQICN was first checked, so new entries show fewer than 30 days.
AQICN API not working for you?
- AQICN needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string.
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- If calls fail only in the browser with a CORS error, AQICN may not allow cross-origin requests. Call it from your server instead.
- If it works from one network but not another, check firewalls, VPNs and regional blocks.
- Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.
Weather APIs up at their last check
- 1
NASA POWER API
Online · 228 msGlobal solar and weather data for energy and agriculture.
- No API key needed
- Fast: 228 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
Veabird API
Online · 587 msBeach (sargassum, waves, hurricanes) and ski snow forecasts for 1,900+ resorts, no key.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
Open-Meteo API
Online · 522 msGlobal weather forecast API for non-commercial use.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
Open-Meteo Ensemble API
Online · 523 msWeather ensemble forecasts from multiple models.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
Pirate Weather API
Online · 419 msFree weather API with forecast data similar to Dark Sky.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
AQICN API status FAQ
Is AQICN API down right now?
AQICN answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1898 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether AQICN is responding at this moment.
How do you check whether AQICN API is up?
Once a day our checker requests AQICN's listed URL (https://aqicn.org/api/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.
What can I use if AQICN API is down?
Free Weather APIs that were up at their last check include NASA POWER, Veabird, Open-Meteo. See the full list of AQICN alternatives for a comparison.
Why does AQICN API work for others but not for me?
AQICN needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If calls fail only in the browser with a CORS error, AQICN may not allow cross-origin requests. Call it from your server instead.