DNZ Developer Documentation

Practical documentation for integrating WhatsApp OTP, Web Push notifications, DNZ-whats desktop messaging, and global payment gateway flows into production websites and apps.

Documentation

WhatsApp OTP API for Websites and Mobile Apps

Developer documentation for sending verification codes through WhatsApp using DNZ WhatsApp OTP API for websites, apps, Node.js, PHP, Flutter, and backend systems.

WhatsApp OTP API for WebsitesWhatsApp Verification API for DevelopersSend OTP via WhatsApp using API

Documentation

Web Push Notification API for Websites and Apps

Learn how DNZ Web Push Notification API works with VAPID keys, subscribers, templates, logs, and mobile fallback through FCM and APNs.

Web Push Notification APIPush Notification API for WebsitesVAPID public key

Documentation

WhatsApp Bulk Messaging Software for Controlled Campaigns

DNZ-whats desktop app documentation for importing TXT or Excel lists, attaching media, using SpinTax, and sending WhatsApp campaigns with safer pacing.

WhatsApp Bulk Messaging SoftwareWhatsApp Mass Messaging Desktop AppWhatsApp sender Windows

Documentation

Global Payment Gateway for International Customers

DNZ Gateway documentation for global payment links, Revolut checkout, admin statistics, commissions, and worldwide customer payment flows.

Global Payment GatewayPayment Gateway for International CustomersRevolut payment links