Whatsauth
Tired of password resets and one-time code hassles that slow users down? Switch your sign-in and verification steps to Whatsauth and move identity checks into WhatsApp or SMS where customers already are. In practice, setup is straightforward: connect your verified sender, add your approved WhatsApp templates, and define code length, time-to-live, and retry rules. Expose a single server endpoint to request a code, store a short-lived token, and listen for delivery events via webhook. From the client, collect a phone number, prefer WhatsApp by default, and present a clean code entry screen with a countdown and a single “Resend via SMS” fallback.
For onboarding and passwordless login, keep the flow tight. Prompt the user for their number, let them choose WhatsApp or SMS, then call your server to trigger a code. Whatsauth delivers the message, and your UI guides the user to paste or type the digits. Use a 15–30 second timer before showing the resend option. If WhatsApp isn’t reachable (no data or app not installed), switch routes automatically. On success, exchange the code for a session token and set a device cookie to reduce friction next time. You can also send a WhatsApp magic link that opens your app or site and verifies in one tap. Localize templates per market and keep tone consistent with your brand voice. Track completion time and drop-off to tune the copy, length of codes, and resend intervals. more
Telephone Number Validation / Onboarding
$0.03
Unique Dynamic Code
Webhook Notification
Logs and Analytics
Expiration & Messages
Customization
2-fa (second Factor Authentication)
$0.04
Unique Dynamic Code
Webhook Notification
Logs and Analytics
Expiration & Messages Customization
Validation Constrains Settings
Delivery Confirmation
$0.04
Unique Dynamic Code
Webhook Notification
Logs and Analytics
Expiration & Messages Customization
Validation Constrains Settings
QR code
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