Yes! Many people use CodeHS's curriculum to teach computer science in their after school clubs.
If you are facilitating the club, you can sign up for your free account at codehs.com/signup/teacher. From there you can access all of our courses and curriculum.
If you're interested in accessing our Pro features for your club, such as activity tracking, lesson plans, and solution guides, you can request a call with someone from our sales team here: https://codehs.com/learnmore.