I already do that. Why use Yandex not Google safe browsing which more reliable or Sophos directly, Yandex use Sophos.
https://www.google.com/transparencyreport/safebrowsing/diagnostic/?hl=en
https://developers.google.com/safe-browsing/v4/pricing
Pricing
All use of Safe Browsing APIs is free of charge.
but thanks for your response.