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

amino.api
1.2b7

This version was deleted from PyPI around 2023-10-27. Installing fails with:
$ pip3 install amino.api==1.2b7 ERROR: Could not find a version that satisfies the requirement amino.api==1.2b7

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/2023-10-26/ \ amino.api==1.2b7
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: