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

exponent-server-sdk-async
2.1.6

This version was deleted from PyPI around 2024-08-13. Installing fails with:
$ pip3 install exponent-server-sdk-async==2.1.6 ERROR: Could not find a version that satisfies the requirement exponent-server-sdk-async==2.1.6
View other deleted versions of exponent-server-sdk-async

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/2024-08-12/ \ exponent-server-sdk-async==2.1.6
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Or, download files manually

And install manually via pip:
exponent_server_sdk_async-2.1.6-py3-none-any.whl (8.7KB)
exponent_server_sdk_async-2.1.6.tar.gz (6.8KB)