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Guide

WhatsApp OTP in Egypt: a developer’s guide

By The Authevo Team7 min read

If you ship apps in Egypt, phone verification is where a smooth signup often falls apart. SMS one-time codes are expensive, delivery is inconsistent across carriers, and you pay for messages that never arrive. Meanwhile the channel your users actually keep open all day is WhatsApp. This guide covers why WhatsApp is the better OTP channel here, what you need to send from your own number, and how to wire it up.

Why WhatsApp for OTP in Egypt

  • Reach — WhatsApp is the default messaging app for most people across Egypt, so a code lands in an app they already have open.
  • Reliability — messages route over official WhatsApp infrastructure with delivery status, instead of SMS routes that filter, delay, or silently drop codes.
  • A fallback that keeps working — when WhatsApp can’t deliver, a good setup reroutes the code to Telegram automatically, so verification doesn’t stall.

What you need to start

To send WhatsApp authentication codes from your own brand, you use your own WhatsApp Business Account (WABA) — so the sender is you, and your user data stays isolated. Meta requires a one-time Business Verification on that account before it can send authentication templates. That step can take a little time, so a practical setup delivers codes over Telegram in the meantime and switches WhatsApp on the moment your verification clears. With Authevo you connect your WABA, generate an sk_ key, and start on Telegram in minutes.

The integration — two API calls

The whole flow is two HTTPS requests, no SDK. Call POST /v1/otp/send with the phone number in E.164 format; you get back a message_id and a status. When the user enters the code, call POST /v1/otp/verify with the same number and the code — a match returns { "data": { "verified": true } }. Branch on the HTTP status and error.code, keep your secret key on the server, and you’re done.

What it costs, and how you pay in Egypt

Your first 50 verifications are free. After that, new accounts pay $0.006 per message sent until their first 500 successful verifications, then move to $0.01 per successful verification — no subscription. Failed sends aren’t billed on the pay-per-success tier. You top up prepaid credit in EGP via InstaPay from your dashboard (we confirm and credit your balance, usually within 30–60 minutes), and a $2 minimum balance keeps sending active. Paying in local currency, over local rails, is the part most global providers can’t offer here.