Sure, they're completely transparent about it. You can find the proportion of external search results right under the filters, with further information in their

Sure, they're completely transparent about it. You can find the proportion of external search results right under the filters, with further information in their FAQ. They integrate their own indexers but I believe bulk of the results come from Google, Bing & others (hence the relatively high per-query cost). https://kagi.com/faq#Where-are-your-results-coming-from https://kagi.com/faq#Where-are-your-results-coming-from I meant that they were "completely reliant" on these APIs in terms of utility, not that 100% of search results are external. I'd love to be proven wrong on this but my impression is that without Google, Bing, and other APIs Kagi wouldn't be a functional and competitive product.