Add powerful multi-channel communication to your web or mobile app. Send Email, SMS, WhatsApp, and Push notifications through one simple API. Built for developers, loved by users.
Reach your users wherever they are, through their preferred channel
Web and mobile push notifications for real-time engagement
Coming SoonFrom startups to enterprise, we power communication for all kinds of apps
Onboarding emails, feature announcements, usage alerts, and customer engagement campaigns.
Push notifications, SMS OTP, in-app messaging, and user re-engagement campaigns.
Order confirmations, shipping updates, abandoned cart recovery, and promotional campaigns.
Appointment reminders, booking confirmations, cancellation alerts, and rescheduling notifications.
Course enrollments, assignment reminders, grade notifications, and student engagement.
Appointment reminders, prescription alerts, health tips, and patient engagement communications.
Production-ready features out of the box
RESTful API, SDKs for all major languages, comprehensive documentation
Visual template builder with variables, conditions, and personalization
Built-in CRM, segmentation, tags, and custom fields for targeting
Track opens, clicks, deliveries, bounces, and user engagement metrics
Let users control their communication preferences and subscription settings
GDPR compliant, encrypted data, SOC 2 Type II certified infrastructure
Clean, simple, and powerful. Just how APIs should be.
POST /api/v1/messages/send
{
"channel": "email",
"to": "user@example.com",
"subject": "Welcome!",
"template": "welcome",
"variables": {
"name": "John"
}
}POST /api/v1/messages/send
{
"channel": "sms",
"to": "+1234567890",
"message": "Your OTP is: 123456",
"sender_id": "YourApp"
}POST /api/v1/otp/send
{
"channels": ["email", "sms"],
"recipients": {
"email": "user@example.com",
"sms": "+1234567890"
}
}POST /api/v1/messages/send
{
"channel": ["email", "sms", "whatsapp"],
"to": "user@example.com",
"template": "order-confirmation",
"variables": {
"order_id": "12345"
}
}Join thousands of developers building better app communication
1,000 free emails/month • No credit card required • Cancel anytime