Follow the steps below to use Twitter's Media Studio to generate a Stream Key and Stream URL. Then, add the Stream Key and Stream URL to the settings of the Studio you want to stream from.
IMPORTANT:
In order to stream directly to Twitter, you need to use its Media Studio, an invite-only feature not available to all Twitter users at this time. More information on the Media Studio is on Twitter's Help Center.
Step by step:
Using a computer, log in to your Twitter account.
Visit Twitter Media Studio's Broadcasts page and click on the Sources tab.
Click Create source.
For source type, select RTMP.
Enter a Source name for your live stream.
Select the Region closest to your location.
Click Create.
Select the source and copy your Stream Key and Stream URL.
TIP:
See Twitter's Help Center articles Going live on Twitter using RTMP and How to Create a Broadcast for more information.
NOTE:
Your stream will be visible on Twitter only after the Host starts the recording in the Studio.