@armandas
I'm glad to hear that you've been exploring the knowledge base creation feature of the API! When you insert website URLs, the API is designed to extract relevant content and structure it into a usable format for the knowledge base. The effectiveness and reliability can vary depending on the complexity and format of the content on the website.
For text-based websites with clear headings and structured content, the API typically performs quite well, as you've noticed with the URLs that were chunked easily. However, for websites like YouTube, where the primary content is video, the API may not be as effective because it's optimized for extracting information from text rather than audio or video content.
If you're looking to include content from YouTube, you might need to use additional services that can transcribe or summarize video content into text before it can be effectively used by the knowledge base API.
If you have any specific questions or need further assistance with the API, please let me know!