Comment by al_borland

They don’t store search history linked to accounts. Logs are only retained for 7-90 days[0].

You can pay anonymously[1]. You can also authenticate anonymously, as someone else already mentioned.

Meanwhile Google retains everything forever and does everything in their power to track everything you do across the web and tie it back to you, logged in or not. This is their entire business model.

[0] https://help.kagi.com/kagi/faq/faq.html#why-trust

[1] https://blog.kagi.com/accepting-paypal-bitcoin