Installing with pipx

pipx is a tool for installing Python CLI applications in isolated environments. It does not require uv.

Install Specify CLI

Pin a specific release tag for stability (check Releases for the latest):

# Install a specific stable release (recommended — replace vX.Y.Z with the latest tag)
pipx install git+https://github.com/github/spec-kit.git@vX.Y.Z

# Or install latest from main (may include unreleased changes)
pipx install git+https://github.com/github/spec-kit.git

Verify

specify version

Upgrade

pipx install --force git+https://github.com/github/spec-kit.git@vX.Y.Z

Uninstall

pipx uninstall specify-cli

Next steps

Head to the Quick Start to initialize your first project.