Discover how the multichannel OTP approach (WhatsApp, SMS, and Voice) secures applications and reduces message delivery costs in Morocco.
User verification via one-time passwords (OTP) is essential for securing registrations, logins, and financial transactions. However, relying solely on SMS for code delivery introduces high costs and reliability issues. To address this, EnvoiSMS launches the **Verify API**, a smart multichannel routing service integrating WhatsApp, SMS, and Voice.
Our API operates with an automatic failover cascade logic. 1. **WhatsApp**: The code is sent first via WhatsApp, which is highly interactive and cost-effective. 2. **SMS**: If the user does not have WhatsApp or fails to receive the message within the configured timeout (e.g., 60 seconds), the system automatically falls back to SMS. 3. **Voice (Phone Call)**: As a last resort, if the SMS is not delivered, an automated voice call reads out the OTP code to the user.
SMS costs in Morocco vary by operator routes and the use of branded Sender IDs. By prioritizing WhatsApp as the primary delivery channel, the average delivery cost per verified user is significantly reduced. In addition, the Verify API handles automatic bi-directional failover between SMSala and SMS.to for SMS delivery, choosing the most economical path.
The API is designed for developer convenience and requires only two endpoints: - **Request Send**: Post the phone number and your Verify application ID. The API automatically generates the secure code and schedules the cascade logic. - **Verify Check**: Once the user inputs the code, send a request to the check endpoint to confirm the verification status.
Under 4 seconds for OTP codes via direct routes.
WhatsApp Business API at only 0.13 MAD per session.
Hosting compliant with Moroccan data protection regulations.
