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

synapse-sdk
1.0.0a2

This version was deleted from PyPI around 2026-07-01. Installing fails with:
$ pip3 install synapse-sdk==1.0.0a2 ERROR: Could not find a version that satisfies the requirement synapse-sdk==1.0.0a2
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/2026-06-30/ \ synapse-sdk==1.0.0a2
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-1.0.0a2-py3-none-any.whl (26.5KB)
synapse_sdk-1.0.0a2.tar.gz (16.2KB)