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

sms-api
1.2.0

This version was deleted from PyPI around 2025-10-02. Installing fails with:
$ pip3 install sms-api==1.2.0 ERROR: Could not find a version that satisfies the requirement sms-api==1.2.0
View other deleted versions of sms-api

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/2025-10-01/ \ sms-api==1.2.0
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:
sms-api-1.2.0.win32.zip (5.8KB)
sms-api-1.2.0.zip (6.3KB)