...
- Go to the Marketplace listing for the add-on
- Go to the Versions tab
- Expand to see all versions
- Copy the URL of the current page - it will be something like: https://marketplace.atlassian.com/plugins/org.swift.confluence.cli/versions
- Insert /download before plugins and remove the "s" at the end to get something like https://marketplace.atlassian.com/downloads/plugins/org.swift.confluence.cli/version
- Find the current cloud build number - use your browser view page source to find the first text that starts with data-build="1000
- Add just the number to the url to come up with something like: https://marketplace.atlassian.com/download/plugins/org.swift.confluence.cli/version/1000004