You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
pantheon-agents was reported malicious
OSV:MAL-2026-5299 - Malicious code in pantheon-agents (PyPI)

pantheon-agents
0.4.5

This version was deleted from PyPI around 2026-06-08. Installing fails with:
$ pip3 install pantheon-agents==0.4.5 ERROR: Could not find a version that satisfies the requirement pantheon-agents==0.4.5
View other deleted versions of pantheon-agents

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/2026-06-07/ \ pantheon-agents==0.4.5
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
pantheon_agents-0.4.5-py3-none-any.whl (1.2MB)