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

ase-protocol
1.0.4

This version was deleted from PyPI around 2026-05-10. Installing fails with:
$ pip3 install ase-protocol==1.0.4 ERROR: Could not find a version that satisfies the requirement ase-protocol==1.0.4
View other deleted versions of ase-protocol

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/2026-05-09/ \ ase-protocol==1.0.4
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:
ase_protocol-1.0.4-py3-none-any.whl (49.2KB)
ase_protocol-1.0.4.tar.gz (89.2KB)