Integrate with Tally, Busy, Marg & any CRM. Send transactional messages using your own number — officially, reliably, instantly.
Msgs / Month
Flexible Plans
API Uptime
Trusted Integrations
A complete WhatsApp API stack — from sending PDFs to automating customer communication from your existing software.
Automatically send invoices, receipts and statements as PDF directly to your customers on WhatsApp — straight from Tally or Busy.
Simple REST API that connects to any software stack. If it can make an HTTP request, it can send a WhatsApp message through WhAPI.
Messages are sent from your own registered business number — not a shared pool. Customers see and trust your brand number.
Send plain text, images, PDFs, and structured templates. Supports transactional and promotional message formats.
Handle up to 30,000 messages per month on our Enterprise plan. Designed for businesses with high volume transactional needs.
Resellers and agencies can get a fully branded panel under their own domain — serve your own clients with your branding.
No complex setup. Connect your number, get API credentials, and start sending — that's it.
Connect your existing WhatsApp Business number to WhAPI — keep your customer contacts and history intact.
Receive your secure API credentials from our dashboard. Works with any HTTP client or SDK.
Paste the API endpoint into Tally, Busy, Marg, or any custom CRM. We provide sample code and documentation.
Messages go out in real-time. Monitor delivery status and scale up your plan as your business grows.
// WhAPI.in — Send Invoice PDF const response = await fetch( 'https://api.whapi.in/v1/send', { method: 'POST', headers: { 'Authorization': 'Bearer YOUR_KEY', 'Content-Type': 'application/json' }, body: JSON.stringify({ to: '919876543210', type: 'document', document: { url: 'https://yoursite.com/inv.pdf', caption: 'Your Invoice #1234 📄', filename: 'Invoice_1234.pdf' } }) } ); // Response: { status: "sent", id: "msg_xxx" }
Per-user, per-month plans. No hidden fees. Upgrade or cancel anytime. Whitelabel available for agencies.
Everything you need to know about WhAPI. Still have questions? Chat with us directly.
Join hundreds of businesses across India automating invoices, reminders, and customer communication via WhatsApp API.