OpenAQ API
Environment · Operational · 30d uptime 100%
OpenAQ is an environmental tech non-profit providing universal access to air quality data. Join a global community using data to solve air inequality and breathe clean air.
Trust signals
Pricing
FREE
Auth
API_KEY
CORS
Yes
Rate limit
Free tier available. API key required for higher limits.
Health
78ms
Trust score
97 (A)
Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Excellent production-readiness signals.
Links
- Homepageopenaq.org
- Documentationdocs.openaq.org
- Base URLdocs.openaq.org/
Integration checklist
- Auth is API_KEY
- CORS enabled — callable directly from browsers.
- Rate limit: Free tier available. API key required for higher limits.