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

ucp-sdk
2026.1.23

This version was deleted from PyPI around 2026-03-04. Installing fails with:
$ pip3 install ucp-sdk==2026.1.23 ERROR: Could not find a version that satisfies the requirement ucp-sdk==2026.1.23
View other deleted versions of ucp-sdk

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/2026-03-03/ \ ucp-sdk==2026.1.23
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:
ucp_sdk-2026.1.23-py3-none-any.whl (94.4KB)
ucp_sdk-2026.1.23.tar.gz (25.9KB)