DC Hub
Environment
Live data on data-center facilities, power markets, grid telemetry, and fiber infrastructure
No keyCORSHTTPS
PM2.5 Open Data Portal
Open low-cost PM2.5 sensor data
Verified 4 days ago: 100% uptime
API key
Not required
HTTPS
Supported
Browser calls
No, needs a proxy
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 470ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for PM2.5 Open Data Portal. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# No authentication required.
curl -s "https://pm25.lass-net.org/ENDPOINT" \
-H "Accept: application/json"This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.
Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
Other Environment APIs
See all 28 →Luchtmeetnet
Environment
Predicted and actual air quality components for The Netherlands (RIVM)
No keyCORSHTTPS
Open-Meteo
Environment
Global weather forecast API for non-commercial use
No keyCORSHTTPS
Open-Meteo Marine
Environment
Ocean wave height, swell, sea temperature and marine weather data
No keyCORSHTTPS
UK Carbon Intensity
Environment
The Official Carbon Intensity API for Great Britain developed by National Grid
No keyCORSHTTPS
WattFigure
Environment
US electricity rates by state, with appliance and EV charging running costs
No keyCORSHTTPS
PM2.5 Open Data Portal — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is PM2.5 Open Data Portal free to use?
PM2.5 Open Data Portal is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
Does PM2.5 Open Data Portal need an API key?
No. We called PM2.5 Open Data Portal on 2026-09-18 with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Can I call PM2.5 Open Data Portal from browser JavaScript?
Not directly. PM2.5 Open Data Portal did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.
Is PM2.5 Open Data Portal still working?
Yes, as of 2026-09-18. Our automated check reached PM2.5 Open Data Portal and recorded a 100% reliability score with a median response time of 470 ms. We re-check on a schedule, and this page updates with the result.
Is PM2.5 Open Data Portal available over HTTPS?
Yes. PM2.5 Open Data Portal serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.