Communication Services
Reach your customers
on every channel
SMS, WhatsApp, and Email APIs — integrate real-time messaging directly into your applications and automate the communications your business depends on.
Why Communication APIs
Keep customers informed at every step
Whether you're sending order confirmations, OTPs, appointment reminders, or bulk promotional messages — Sahyadri integrates messaging APIs directly into your existing or new application. One integration, every channel.
SMS & Shortcode Integration
SMS reaches customers even without internet. We integrate transactional and promotional SMS into your application — OTPs, alerts, booking confirmations, delivery updates, and bulk campaigns.
We also support two-way shortcode integration — letting customers reply, opt in, or interact with your service via SMS, with responses captured and processed in your system.
Transactional
OTPs, alerts, confirmations sent instantly
Promotional
Bulk campaigns to opted-in subscribers
Shortcode
Two-way SMS — receive and process replies
API Integration
Drop-in .NET SDK or REST endpoint
WhatsApp Business API
WhatsApp is where your customers already are. We integrate the official WhatsApp Business API into your application — enabling automated notifications, two-way conversations, rich media messages, and interactive reply buttons.
Ideal for appointment reminders, order tracking, customer support workflows, and promotional campaigns — all running through one familiar interface your customers trust.
- Template messages — notifications, alerts, reminders
- Two-way messaging with reply capture in your application
- Images, documents, and location sharing
- Suitable for advertising agencies, media, retail, healthcare
Email API Integration
Email remains the highest-ROI communication channel for business. We integrate transactional and marketing email APIs into your applications — reliably delivering welcome emails, invoices, reports, newsletters, and campaigns straight from your system.
- Transactional emails — invoices, receipts, account notifications
- Bulk email campaigns with delivery tracking
- HTML template design and personalisation
- Integration with your existing CRM or ERP
Quick Comparison
Choosing the right channel
| Feature | SMS | ||
|---|---|---|---|
| Open rate | 98% | 90%+ | 20–30% |
| Rich media | No | Yes | Yes |
| Internet required | No | Yes | Yes |
| Two-way conversation | Shortcode | Yes | Reply only |
| Best for | OTPs, alerts | Support, reminders | Reports, newsletters |
Ready to connect with your customers?
Tell us what you need and we'll integrate the right channel into your application.