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 Security at Scale
Enterprise-grade verification infrastructure powering billions of authentications
4 Channels, One API Call
Send OTPs via the best channel for each user — with automatic fallback for guaranteed delivery
SMS OTP
Most popular channel. Delivered in under 3 seconds to any mobile number worldwide. Supports alphanumeric sender IDs.
Enterprise-Grade Verification
Security, reliability, and compliance — built for the most demanding authentication needs
Multi-Channel Delivery
Send OTPs via SMS, Voice, WhatsApp, and Email with intelligent channel selection and automatic fallback for maximum delivery.
Fraud Prevention Engine
AI-powered fraud detection with rate limiting, device fingerprinting, IP reputation scoring, and behavioral analysis to block abuse.
Sub-Second Delivery
Direct carrier integrations and edge computing deliver OTPs in under 3 seconds globally. Priority routing for time-sensitive codes.
Fully Configurable
Customize OTP length (4-8 digits), validity period, retry attempts, cooldown periods, and branding — all via API or dashboard.
Real-Time Analytics
Track delivery rates, verification success, channel performance, and fraud attempts with live dashboards and alerts.
Enterprise Security
End-to-end encryption, HSM-backed key storage, audit logs, and compliance with RBI, GDPR, PCI DSS, and SOC 2 standards.
OTP for Every Industry
See how enterprises use QuickComm OTP to secure user interactions
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.
Send & Verify OTP in 2 API Calls
Simple REST API with SDKs for Node.js, Python, Java, PHP, Go, and Ruby. Webhooks for delivery tracking and fraud alerts.
# 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"
# }QuickComm OTP vs Build Your Own
Frequently Asked Questions
Everything you need to know about OTP verification
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