Agora ID is the ID of the app you are creating in your Agora dashboard. Please note that when you’re creating a project for Streaming, you get the Agora ID and the Certificate keys:
https://docs.zeroqode.com/plugins/agora-api-connector-plugin/agora-streaming-component#agora-setup
The Video Calls ID is the parameter that you get when creating the app in your Agora dashboard for simple video calls:
https://docs.zeroqode.com/plugins/agora-api-connector-plugin#agora-account-setup
When you’re creating a new project you can choose what Authentication mechanism to choose.
When you choose the App ID + Certificate + Token, you get the Agora ID and Certificate keys, which are needed for the Streaming feature in the plugin.
When you choose the App ID, you get the Video Calls ID key, which is needed for the video calls feature in the plugin.
Thus, to get all necessary ID keys, you need to create 2 projects in your dashboard with a different Authentication mechanism. The Agora ID is the APP ID of the project with the App ID + Certificate + Token authentication mechanism.
Useful note: it will be better not to install both streaming and video call within the same page. If you create separate pages for these plugin elements, they will work correctly, without any issue.
I hope this info will be useful for you 
Regards,
Zeroqode Team