WhatsApp Marketing SaaS & REST API Gateway Source Code — White-Label Node.js & React Script

Instant 8-Digit Pairing Code: Pair any WhatsApp account directly using a phone number without needing to scan QR codes with a camera. High-Speed QR Code Scanner: Instant, zero-lag Base64 QR code generation with automated live refresh. Multi-Device & Multi-Account Support: Connect, manage, and toggle across multiple WhatsApp phone numbers per user account. Supabase Cloud Session Persistence: WhatsApp authentication credentials and multi-device keys are synchronized directly to Supabase PostgreSQL (waa_baileys_auth), surviving server restarts and container rebuilds. Unattended Socket Memory Guard: Automatically pauses inactive QR polling loops after 5 minutes of inactivity to protect server RAM and CPU from abandoned browser tabs. Zero-Downtime Auto-Reconnect: Self-healing WebSocket connections that automatically resume when networks fluctuate or containers redeploy

Zero Per-Message Fees: Bypass official Meta Cloud conversation costs with unlimited direct messaging via your connected WhatsApp accounts. Dynamic Variable Personalization: Automatically merge recipient data into messages (e.g., {{name}}, {{phone}}, {{order_id}}, {{var1}}). CSV & Text File Contact Importer: Effortlessly import thousands of phone numbers and custom customer attributes in seconds. Staggered Delay Randomization: Configurable jitter delay (e.g., 5s – 15s) between message dispatches to mimic natural human behavior. Real-Time Campaign Analytics: Live tracking of dispatched, delivered, and failed message counts with downloadable export reports.

Multi-Step Lead Nurturing: Set up automated scheduled messaging funnels (e.g., Step 1 on signup, Step 2 after 24 hours, Step 3 on day 5). Automated Background Sequence Worker: Standalone background cron processor running continuous intervals to dispatch due messages. Dynamic Subscriber State Tracker: Real-time visibility into subscriber progress, current step index, and next run schedules.

Web WhatsApp Real-Time Inbox: Unified conversation manager for two-way customer communication right inside the web dashboard. Rich Multi-Format Messaging: Send and receive Text, Images, Videos, Voice Notes, Audio files, Documents/PDFs, Stickers, Interactive Polls, Buttons, and Contact vCards. Message Interactions: Live message emoji reactions, message editing, message pinning, and soft deletion. Team Delegation & CRM Notes: Assign customer conversations to specific team members and maintain private internal notes per customer thread

Intelligent Keyword Matching Engine: Automated rule builder supporting Exact Match, Contains, Starts With, and Regex patterns. Multi-Provider AI Assistant Engine: Built-in connectors for the world's leading LLMs: Google Gemini API (@google/genai) OpenAI (GPT-6) DeepSeek AI (DeepSeek-V4 Flash) Nvidia NIM Custom AI Persona & Prompt Builder: Train the AI with your company's knowledge base to handle 24/7 customer support, sales inquiries, and FAQ answering automatically.

Group Administration: Create new WhatsApp groups, add or remove participants, promote or demote admins, and modify group metadata/permissions directly via API or UI. WhatsApp Channels (Newsletters): Discover and sync user-followed channels, create new channels, and broadcast posts and updates to channel subscribers.

Human Presence Simulation: Automatically triggers authentic WhatsApp typing indicators (composing) or audio recording indicators (recording) with randomized duration before sending. Automated Account Warmup Schedule: Progressive 7-day daily message limits (Day 1: 20 msgs, Day 2: 50 msgs, Day 3: 100 msgs...) engineered to protect newly connected SIM cards from spam flags. Batch Pacing & Rest Pauses: Automatically injects extended cool-down pauses after sending designated batches of messages.

WhatsApp Status Viewer & Downloader: Inspect incoming contact statuses (images/videos) and save media directly to disk. Status Publisher API: Automatically publish text, image, or video status updates to your WhatsApp story broadcast via REST API or the dashboard.

Zero-Trust Device Guard: Proprietary browser and hardware fingerprinting engine (device-guard.js) analyzing WebGL GPU and Canvas signatures to block tampering. WhatsApp OTP Protected Registration: Eliminates bot spam and disposable email abuse by enforcing 6-digit WhatsApp OTP verification during onboarding. Initial Setup Bootstrap Mode: Prevents deployment deadlocks by printing Super Admin onboarding OTPs directly to terminal logs when databases are fresh. Hardened Authentication: Bcrypt password hashing (12 salt rounds), secure HTTP-only JWT session cookies, and Row Level Security (RLS) enforcement. Security Firewall: Real-time IP and phone blacklisting, anti-bruteforce cooldowns, and input sanitization.

Zero-Code Branding (/admin/site): Customize Site Name, Tagline, Brand Logo URL, Favicon URL, and Support links directly from the admin dashboard without rebuilding code. Full SEO & Social Share Control: Manage Meta Titles, Meta Descriptions, Keywords, OpenGraph (OG) preview images, Canonical URLs, and Google Site Verification codes. Dynamic Search Engine Endpoints: Auto-generated dynamic /robots.txt, /sitemap.xml, /llms.txt, and /llms-full.txt that automatically adapt to your live domain. Admin WhatsApp Notifications: Real-time automated WhatsApp alerts delivered to the administrator's phone whenever new users register, payments succeed, or device connection statuses change.

Native UPIGateway.dev Integration: Seamless, zero-KYC automated Indian UPI payments supporting PhonePe, Google Pay, Paytm, BHIM, and Cred. Instant Auto-Upgrade Webhook: Real-time server-to-server callback verification that instantly activates plans upon successful UPI payment. Configurable Subscription Tiers: Built-in support for Free, Starter, Pro, and Enterprise tiers with customized monthly quotas and device allowances. Dynamic UPI QR Code Modal: Interactive frontend modal generating real-time dynamic UPI intent URLs and QR codes for mobile and desktop checkout.