Is there a way to pull all channels (all users that are streaming at a certain time) on Twitch?

API
1

I need to collect data from all channels that are live at a certain time. In addition, I would also like to obtain data from users who are in the chats of these transmissions. Is there any API for this?

2

Get Streams:

Not without authorisation

Get Chatters:

All of this sounds like you may need research authorization from Twitch. Please refer to the developer TOS.