Your Twitch stream key
lets you set up a direct connection to your Twitch account
between streaming software like OBS and Streamlabs.
You should keep your Twitch stream key private,
as people can potentially use it to stream content
you don't want to your account.
To find your stream key, go to Twitch.tv
and log in to your account.
Click on your profile image
and go to your creator dashboard.
Then click "Settings," then "Stream."
Here is your stream key.
You can click the copy button,
and it will copy it to your clipboard.
Now return to your streaming software of choice
and paste it within the live settings.
Now you can go live instantly on Twitch
via your streaming software.