Environment — entry 011 of 18
PM2.5 Open Data Portal
The LASS PM2.5 Open Data Portal aggregates readings from Taiwan's low-cost civic air-quality sensor networks (AirBox, LASS, EPA, and others) into freely downloadable JSON snapshots, refreshed continuously with no key required. It also runs a DCF (Data Calibration Framework) service that publishes machine-learning-corrected PM2.5 estimates per monitoring site.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score74
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/pm2-5-open-data-portal/"><img src="https://greatapis.com/badge/pm2-5-open-data-portal.svg" alt="Scored 74 on greatapis.com"></a>Auth quickstart
- No key needed — call it now.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.