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

specmatic
2.0.26

This version was deleted from PyPI around 2026-06-03. Installing fails with:
$ pip3 install specmatic==2.0.26 ERROR: Could not find a version that satisfies the requirement specmatic==2.0.26
View other deleted versions of specmatic

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/2026-06-02/ \ specmatic==2.0.26
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:
specmatic-2.0.26-py3-none-any.whl (60.1MB)
specmatic-2.0.26.tar.gz (60.1MB)