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

ragstack-ai-langserve
0.0.1a1

This version was deleted from PyPI around 2023-11-13. Installing fails with:
$ pip3 install ragstack-ai-langserve==0.0.1a1 ERROR: Could not find a version that satisfies the requirement ragstack-ai-langserve==0.0.1a1
View other deleted versions of ragstack-ai-langserve

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/2023-11-12/ \ ragstack-ai-langserve==0.0.1a1
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Or, download files manually

And install manually via pip:
ragstack_ai_langserve-0.0.1a1-py3-none-any.whl (475.2KB)
ragstack_ai_langserve-0.0.1a1.tar.gz (472.3KB)