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Daliva

Prelude

prelude.so

Phone-verification API (formerly Ding) that sends one-time codes over SMS, WhatsApp, Telegram, Viber and RCS and charges a per-verification fee plus channel message costs.

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At a glance

  • Custom sender name
  • OTP verification API

Summarised from the facts below. Not paid for.

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Fees

Fees
ItemValueSource
Price per local SMSEUR 0.1824 Oct 2026
Price by operatorEgypt page lists Vodafone, Orange, Etisalat, WE; no per-operator price.24 Oct 2026
Price per OTPEUR 0.0324 Oct 2026
Monthly minimumFree24 Oct 2026

Delivery

Delivery
ItemValueSource
OTP fallback channelsWhatsApp

Sender name

Sender name
ItemValueSource
Sender ID registrationYes

Developers

Developers
ItemValueSource
HTTP/REST APIYes
OTP verification APIYes