Thank you for using our SDK. For joining a meeting, you do not need an access token. All you need is just a meetingID. By default, the display name will show as the account that is associated with you APP_KEY and APP_SECRET. If you want to have different name for your user, you need to ask them for a display name or you can generate a name for them. If you have a chance to play around with our Android demo (example), in MainActivity.java, there is a function called “onClickBtnJoinMeeting”. You can get some sense of how to join a meeting. In fact, if you play around with the demo, in the launching page, there is an option called “API User”. I think this type of user is similar to the scenario that you are describing. Hope this helps. Please feel free to reach out to me if you have any other questions.