410 Gone

The HTTP 410 Gone status code indicates that the requested resource existed previously but has been permanently removed and is no longer available. This status code is returned when attempting to access OpenAQ API version 1 or version 2 endpoints, all of which were retired in January 2025 and are no longer available.

A 410 response is the correct server behavior when resources have been permanently removed. The OpenAQ API is properly indicating that the requested endpoint no longer exists and will not return. This is different from a 404 error in that it confirms the resource did previously exist.

Warning

Repeated requests to retired endpoints may result in an account suspension or permanent ban. Only request valid API version resources.

How to Resolve

Migrate your code to use OpenAQ API version 3 endpoints, as documented in the API reference documentation.

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