You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

agentx-py
0.21.0

This version was deleted from PyPI around 2025-07-24. Installing fails with:
$ pip3 install agentx-py==0.21.0 ERROR: Could not find a version that satisfies the requirement agentx-py==0.21.0
View other deleted versions of agentx-py

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/2025-07-23/ \ agentx-py==0.21.0
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:
agentx_py-0.21.0-py3-none-any.whl (428.4KB)
agentx_py-0.21.0.tar.gz (391.3KB)