Transactional Email API with SMTP Infrastructure & Deliverability
Send transactional emails, OTPs, verification emails, alerts, and notification workflows using scalable realtime email infrastructure.
Enterprise-grade email delivery infrastructure
Send transactional emails, automate notification workflows, manage delivery systems, and scale realtime email communication APIs.
Built for realtime transactional email delivery
Enterprise-ready APIs for OTP delivery, transactional messaging, email automation, notifications, and scalable communication systems.
Transactional Emails
Send OTPs, verification emails, password resets, invoices, alerts, and realtime transactional email workflows.
Email Automation
Trigger automated notification flows, onboarding emails, user engagement campaigns, and scheduled messaging systems.
Custom Templates
Build branded email templates with dynamic variables, buttons, multilingual support, and reusable layouts.
Official SDKs & Libraries
Integrate Voyant APIs quickly using official SDKs for backend, frontend, mobile, and server-side applications.
Flutter
Mobile, desktop, and web SDK for Flutter applications across Android, iOS, Windows, macOS, Linux, and web.
View pub.dev Package →Python
Python SDK for automation, backend services, AI workflows, and scripts.
Coming SoonTransactional Email API Examples
Send verification emails, onboarding messages, and fully customizable transactional emails using simple realtime JSON APIs.
{
"to": "[email protected]",
"language": "en",
"detectLocation": true,
"requestId": "req_123",
"fromType": "verify",
"replyTo": "[email protected]",
"templateName": "email_verification",
"templateData": {
"username": "John",
"otp": "123456",
"expiryMinutes": 10,
"deviceText": "Chrome on Windows"
}
}
{
"to": "[email protected]",
"language": "en",
"detectLocation": false,
"requestId": "req_456",
"fromType": "updates",
"replyTo": "[email protected]",
"templateName": "welcome",
"templateData": {
"username": "John",
"appName": "Voyant",
"button": {
"type": "filled",
"text": "Get Started",
"url": "https://example.com",
"color": "#4f46e5"
}
}
}
{
"to": "[email protected]",
"language": "en",
"detectLocation": true,
"requestId": "req_789",
"fromType": "support",
"replyTo": "[email protected]",
"templateName": "custom",
"templateData": {
"greeting": "Hello John",
"title": "Important Update",
"subtitle": "Please review this information",
"message": "Your account settings have been updated successfully.",
"subject": "Account Update",
"button": {
"type": "outlined",
"text": "View Details",
"url": "https://example.com",
"color": "#22c55e"
}
}
}
Tutorials & Walkthroughs
Learn how to integrate APIs, configure SDKs, and build production-ready traffic systems with Voyant Networks.
Referral Rewards
Referral Program Explained
Learn referral tracking, reward flows, and partner attribution systems.
Scale transactional communication with realtime email APIs
Send OTPs, alerts, verification emails, and notification workflows using scalable email delivery infrastructure.
Platform Support
Get help with API integration, email delivery systems, notification workflows, and transactional messaging infrastructure.
Platform Resources
Documentation, tutorials & product updates
Access email integration guides, transactional messaging tutorials, delivery system walkthroughs, and realtime API updates.