Yes. The pricing page lists a notarized affidavit of service as an optional add-on for a fee of $5.00.
Why it is optional
The same pricing page explains that notarized affidavits have not been required since January 1, 2024 under CPLR 2106, and that an electronically signed affirmation of service is valid in New York courts.
When to request it
If a court, client, or internal policy specifically calls for notarization, request it at the start of the order or as soon as the need becomes clear.