You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
api-hypixel was reported malicious
OSV:MAL-2024-4769 - Malicious code in api-hypixel (PyPI)

api-hypixel
1.0.0

This version was deleted from PyPI around 2024-02-06. Installing fails with:
$ pip3 install api-hypixel==1.0.0 ERROR: Could not find a version that satisfies the requirement api-hypixel==1.0.0
View other deleted versions of api-hypixel

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-02-05/ \ api-hypixel==1.0.0
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Or, download files manually

And install manually via pip:
api_hypixel-1.0.0-py3-none-any.whl (2.6KB)
api-hypixel-1.0.0.tar.gz (2.2KB)