You can pay for Kagi with bitcoin. I do it. I think they even have Lightning.
Only see an option for Cashapp pay required full KYC
Maybe this differs across jurisdictions (I'm U.S.), but I'm able to use OpenNode. Settings > Billing > Prepaid credit
You have to create and be signed into an account to search with kagi. No account needed for athenut.
Yes https://image.nostr.build/7baff58cacb8bcf7cb411a4ffdcd63f670c2351de360af30f652f63b04c14b10.jpg
Never used Kagi but yet again ecash enthusiasts want people to use custodians when bitcoin payments are accepted. nostr:note170ur7uwtv6wlp22kr6r0zl8mdmtl6hsjy8sjfwpvuglwrrte2h3s5wer9d