Get the list of channels that a YouTube user (or list of users) subscribes to (if they make this information public) by accessing the YouTube API Subscriptions List Endpoint. This will paginate through all the results for you, aggregating the results into a single CSV file and can also work with a list of users to get the combined subscriptions into a single CSV file.
Getting Started
Import this formula to add the workflow to your account and edit the input collection to contain the YouTube User IDs you want to look up the subscriptions for. You’ll also need to enter your YouTube API Key so we can make the requests on your behalf.