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

synapse-sdk
1.0.0b9

This version was deleted from PyPI around 2026-08-24. Installing fails with:
$ pip3 install synapse-sdk==1.0.0b9 ERROR: Could not find a version that satisfies the requirement synapse-sdk==1.0.0b9
View other deleted versions of synapse-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/2026-08-23/ \ synapse-sdk==1.0.0b9
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:
synapse_sdk-1.0.0b9-py3-none-any.whl (514.6KB)
synapse_sdk-1.0.0b9.tar.gz (51.4MB)