To invite learners to your private course go to the Permissions page, block Learners. There are two ways to invite people:
1. Enter an email address or user_id of learner who you want to invite.
2. Create invitation link and send it to your learners.
You can delete the link by clicking on the cross and create a new link. In this case, the first link will stop working.
3. Manage course permissions by using API Stepik.
Using open REST API Stepik you can write a script that allows:
- to register new Stepik users,
- to access the course for specific users,
- to remove access to the course for specific users.
More about Stepik API: https://github.com/stepicorg/stepik-api