PyPI API: /pypi/{package}/json endpoints no longer accessible, changed to /project/{package}

[davidlacho]

Describe the bug
Package information pages previously accessible via the /pypi/{package}/json endpoint are no longer available at that URL structure. The API endpoint appears to have changed to use /project/{package} instead. This is causing pyupio's package fetcher to fail when attempting to retrieve package metadata.

Expected behavior
Package metadata should be accessible via consistent, documented API endpoints. If URL structures change, proper deprecation notices should be provided to allow dependent tools to update their implementations.

To Reproduce
Example of a failing URL:

ttps://pypi.org/pypi/defichain-utils/json resulting in 503

My Platform
This is a server-side API integration issue affecting pyupio's package metadata fetcher. The problem occurs regardless of client platform as it relates to PyPI's API endpoint structure.

Additional context

[di]

This project doesn't seem to exist: https://pypi.org/project/defichain-utils/, that's why the JSON URL is 404.

You can see an example of a successful API response here that uses the URL structure you're requesting: https://pypi.org/pypi/sampleproject/json. More details on this API are here: https://docs.pypi.org/api/json/