Environment
No authHTTPSCORS ?
Environment
PM25.in
Air quality of China.
PM25.in API is a free Environment API that requires apiKey authentication, is only available over HTTP and has unconfirmed CORS support.
- Authentication
- apiKey
- HTTPS
- No
- CORS
- Unknown
- Category
- Environment
Visit documentation ↗www.pm25.in
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PM25.in API FAQ
Is the PM25.in API free?
Yes. The PM25.in API is listed in the Environment category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the PM25.in API require an API key?
Yes. The PM25.in API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the PM25.in API from the browser?
CORS support for the PM25.in API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Does the PM25.in API support HTTPS?
No. The PM25.in API is only available over plain HTTP, which browsers block on HTTPS sites. Call it from a server instead.