Is PM25.in API down?
Current status, daily uptime history and troubleshooting for the PM25.in API (Environment).
No, PM25.in is up
PM25.in answered our last daily check (Oct 24, 2026, 12:25 UTC) in 395 ms with HTTP 200.
Checking PM25.in now…
Sending a request from our server.
PM25.in API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- 395 ms · HTTP 200
- Last up
- Now
We check PM25.in's listed URL (http://www.pm25.in/api_doc) once a day. History started when PM25.in was first checked, so new entries show fewer than 30 days.
PM25.in API not working for you?
- PM25.in 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, PM25.in may not allow cross-origin requests. Call it from your server instead.
- PM25.in is listed without HTTPS. Browsers block plain-HTTP requests from HTTPS pages (mixed content).
- 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.
Environment APIs up at their last check
- 1
kanari API
Online · 527 msReal-time worldwide wildfire detections, water bomber tracking and open fire archive.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
Open-Meteo API
Online · 609 msFree weather API for non-commercial use.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
Sähkön hinta nyt API
Online · 1106 msFinnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
WattFigure API
Online · 712 msUS electricity rates by state, with appliance and EV charging running costs.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
GridVigil API
Online · 1588 msPressure scores, demand, generation mix and alerts for the 10 major U.S. power grids.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
PM25.in API status FAQ
Is PM25.in API down right now?
PM25.in answered our last daily check (Oct 24, 2026, 12:25 UTC) in 395 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether PM25.in is responding at this moment.
How do you check whether PM25.in API is up?
Once a day our checker requests PM25.in's listed URL (http://www.pm25.in/api_doc) 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 PM25.in API is down?
Free Environment APIs that were up at their last check include kanari, Open-Meteo, Sähkön hinta nyt. See the full list of PM25.in alternatives for a comparison.
Why does PM25.in API work for others but not for me?
PM25.in 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, PM25.in may not allow cross-origin requests. Call it from your server instead.