The easiest way to download a Twitter spaces is by using Space Make
Step 1: Visit SpaceMake.io/twitter-spaces-downloader
Step2: Enter the link of your Twitter spaces and click on the “download” button. Make sure it is in this format – x.com/i/spaces/id
Step3: That’s it! Your spaces will start downloading and you’ll have your audio file in less than 30 secs.