WhatsAuth

WhatsAuth is for businesses and developers who need to verify phone numbers or add one-time password (OTP) checks without building the authentication flow from scratch. It supports account onboarding and login, two-factor authentication, password recovery, phone verification, and transaction authorization. Integrate WhatsAuth with an API or JavaScript form validator. For a verification, it generates a unique code and a WhatsApp link; users open WhatsApp and send the prepared message to confirm their number. The service can also provide a QR code and sends the verification status to your system through a webhook. WhatsApp is the default channel, with SMS also available. This is a fit for teams adding phone-based verification to a website or service; it requires integration with that service rather than serving as a standalone consumer authenticator.

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