Verify Users Instantly & Securely
Send and verify OTPs via SMS, Voice, WhatsApp, and Email. Intelligent fallback, fraud prevention, and 99.9% delivery — all in one API call.
Securing authentication for India's top platforms
Built for Secure and Reliable Verification
Designed to handle high-volume OTP requests with speed, accuracy, and strong security standards.
4 Channels, One API Call
Deliver OTPs via SMS, Voice, WhatsApp, or Email — with automatic fallback to ensure successful delivery.
SMS OTP
Fast and widely used for user verification across all mobile devices.
Powerful Features for OTP Delivery
Everything you need for secure and efficient user verification.
Multi-Channel Delivery
Send OTPs across multiple channels with automatic fallback for higher success rates.
Fraud Protection
Prevent misuse with rate limiting, validation checks, and secure verification flows.
Fast Delivery
OTPs are delivered instantly to ensure a smooth user experience.
Flexible Configuration
Customize OTP length, expiry time, and retry attempts as per your needs.
Real-Time Tracking
Monitor delivery status, success rates, and performance through dashboards.
Secure Infrastructure
Built with strong encryption and compliance standards for safe authentication.
OTP Solutions for Every Industry
Used across banking, e-commerce, healthcare, and more for secure logins, transactions, and verification.
Banking & Fintech
RBI-compliant OTP verification for secure transactions and account access
Two API Calls. That's It.
Send OTP → Verify OTP. No complexity, no token management, no hassle.
Send OTP
Call /otp/send with phone number and preferred channel. We handle everything.
We Deliver
OTP delivered in <3s with auto-fallback across SMS, Voice, WhatsApp, Email.
User Enters
User receives and enters the code. Auto-read supported on Android.
Verify
Call /otp/verify with the code. We return verified/failed instantly.
Easy Integration with OTP APIs
Integrate OTP verification using simple APIs and start sending codes within minutes.
# Send an OTP via REST API
curl -X POST \
https://api.quickcomm.com/v1/otp/send \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "+919876543210",
"channel": "sms",
"otp_length": 6,
"expiry": 300,
"template_id": "tmpl_login_otp",
"brand_name": "YourApp",
"fallback": {
"enabled": true,
"chain": ["sms", "whatsapp", "voice"],
"timeout_per_channel": 30
},
"security": {
"rate_limit": "3/min",
"ip_check": true,
"device_fingerprint": "fp_abc123"
}
}'
# Response:
# {
# "request_id": "otp_req_abc123",
# "status": "sent",
# "channel": "sms",
# "expires_at": "2026-02-28T12:05:00Z"
# }Why Use QuickComm OTP Instead of Building Your Own?
Frequently Asked Questions
Everything you need to know about OTP verification
Start Securing Your Users Today
Deliver OTPs quickly and reliably for login, transactions, and verification.
No credit card required. 1,000 free verifications included.