When you input a channel handle, first the tool uses the Channel Info endpoint to fetch the channel's name, photo and subscriber count for the results card.
Next, it uses the Uploaded Videos endpoint to find the last 12 videos, and the Video Info endpoint to get each video's date, comment count and description. At the same time, it reads each video's comments with the Video Comments endpoint.
Finally, custom code and an AI model run over the raw data to sort out thin comments, genuine questions and buying intent.