Lightning-Fast OTP SMS Delivery
Secure user authentication with 2-6 seconds OTP delivery. Trusted by 1000+ businesses for critical verification workflows.
Why Choose Our OTP Service?
2-6 Seconds Delivery
Industry-leading delivery speed ensures users receive OTPs instantly, reducing drop-offs and improving conversion rates.
99.99% Success Rate
Enterprise-grade infrastructure with automatic fallback routing ensures your OTPs always reach users.
TRAI & DLT Compliant
Fully compliant with TRAI regulations and DLT requirements for transactional SMS in India.
Real-Time Analytics
Track delivery status, success rates, and user engagement with comprehensive real-time dashboards.
Easy Integration
RESTful API with SDKs in PHP, Python, Node.js. Get started in minutes with comprehensive documentation.
Transparent Pricing
Starting at ₹0.10/OTP with volume discounts. No setup fees, no hidden charges.
Perfect for Every Industry
🏦 Banking & Finance
- Transaction verification
- Login authentication
- Account recovery
- Payment confirmations
🛒 E-Commerce
- User registration
- Order confirmations
- Password resets
- Delivery updates
🏥 Healthcare
- Patient verification
- Appointment confirmations
- Prescription alerts
- Test result notifications
🎓 Education
- Student login verification
- Exam notifications
- Result announcements
- Parent communication
🚗 Logistics
- Driver verification
- Delivery confirmations
- Booking confirmations
- Status updates
💼 Enterprise
- Employee authentication
- Access control
- Security alerts
- System notifications
Simple API Integration
Get started in minutes with our developer-friendly REST API
// PHP Example
$api_key = 'your_api_key';
$mobile = '919876543210';
$otp = rand(100000, 999999);
$url = 'https://api.onlinesmsservice.com/v1/otp/send';
$data = [
'api_key' => $api_key,
'mobile' => $mobile,
'otp' => $otp,
'template_id' => 'your_template_id'
];
$response = file_get_contents($url . '?' . http_build_query($data));
echo $response;Transparent OTP Pricing
Starter
- ✓ Up to 10,000 OTPs/month
- ✓ 2-6 seconds delivery
- ✓ Basic analytics
- ✓ Email support
Business
- ✓ Up to 100,000 OTPs/month
- ✓ 2-6 seconds delivery
- ✓ Advanced analytics
- ✓ Priority support
- ✓ Dedicated account manager
Enterprise
- ✓ Unlimited OTPs
- ✓ 2-6 seconds delivery
- ✓ Custom analytics
- ✓ 24/7 phone support
- ✓ SLA guarantee
- ✓ Dedicated infrastructure
Frequently Asked Questions
How fast is OTP delivery?
Our OTP SMS are delivered within 2-6 seconds on average. We use priority routing and have direct connections with all major telecom operators in India.
Is it DLT compliant?
Yes, our OTP service is fully DLT compliant. We handle all DLT registration requirements and ensure your messages meet TRAI regulations.
What's the delivery success rate?
We maintain a 99.99% delivery success rate with automatic fallback routing. If the primary route fails, we automatically switch to backup routes.
Can I track OTP delivery status?
Yes, you get real-time delivery reports via webhooks and can track status through our dashboard or API.
Do you support international OTP?
Currently, we specialize in Indian OTP delivery. For international requirements, please contact our sales team.
Ready to Improve Your Conversion Rate?
Start with 500 free SMS credits upon successful registration and DLT mapping with an approved telemarketer.
Get Started Free