Bulk SMS & WhatsApp API

Bulk SMS & WhatsApp Messaging API Engine provides automated transactional notifications, WhatsApp PDF invoice delivery, and REST API integration for web and desktop applications. 1. WHATSAPP AUTOMATION ENGINE (PORT 8000) - Automated PDF invoice attachment delivery directly to customer WhatsApp chat. - Interactive WhatsApp business messaging API for payment receipts and order status. - Session-based session management ensuring seamless connectivity. 2. BRANDED & NON-BRANDED BULK SMS - Official Masking SMS (sender ID) and Non-Masking SMS delivery across all BD telcos. - Ultra-fast OTP SMS engine delivering verification codes in under 1 second. - Transactional billing alerts and promotional marketing campaigns. 3. RESTFUL JSON API INTEGRATION - Developer-friendly REST API supporting PHP, Python, Node.js, C#, Java, and Go SDKs. - Detailed delivery report (DLR) webhooks for real-time status updates. - Credit balance monitoring API and low balance alerts. 4. CAMPAIGN SCHEDULER & DASHBOARD - Bulk contact list import (.csv / .xlsx) with campaign scheduling. - Dynamic contact tags and custom field substitution (e.g. Hi {Name}, your bill is {Amount}). 5. SECURITY & RELIABILITY - High-concurrency throughput capable of handling 10,000+ SMS per minute. - Encrypted API key authentication and IP whitelisting. 6. TARGET ORGANIZATIONS - E-Commerce Platforms, Financial Institutions, Schools, Software Vendors, and Retailers.