You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
selenium-stealth-helper was reported malicious
OSV:MAL-2025-191865 - Malicious code in selenium-stealth-helper (PyPI)

selenium-stealth-helper

This package was deleted from PyPI around 2025-08-25. Installing fails with:
$ pip3 install selenium-stealth-helper ERROR: Could not find a version that satisfies the requirement selenium-stealth-helper (from versions: none) ERROR: No matching distribution found for selenium-stealth-helper

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/2025-08-24/ \ selenium-stealth-helper
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Or, download files manually

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1.0.0
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4