* For SMS: $0.05 per successful verification + $0.0079 per SMS (US). See international SMS pricing here. For Voice: $0.05 per successful verification + applicable outbound Programmable Voice price based on called destination. See full Programmable Voice pricing here. See email pricing here. For WhatsApp: $0.05 per successful verification + $0.0135 (US) per Authentication conversation. See full WhatsApp pricing here. Push channel fee is included in the verification fee and is charged when a request is approved or denied. TOTP channel fee is included in the verification fee and is charged when a request is approved. For Silent Network Auth: $0.05 per successful verification + SNA channel fee that is priced per country; contact sales for details.