Reliable OTP SMS Services Provider
Trusted OTP SMS & API Service Provider. We recognize the importance of OTP (One-Time Password) authentication for your business. As a premier OTP SMS provider, we deliver secure, reliable, and seamlessly integrated OTP solutions to enhance both security and user experience.
Safe and Secure
Send OTP in a secure manner using HTTPS protocols.
Robust API
Get OTP status through a validator API.
Lightning Fast
Pay only for OTP’s delivered within 30 seconds.

91%
Messages Read Within 90 Seconds
50
Number of Times We Check Our Phones Each Day
4.95b
Mobile Users Globally
OTP SMS | OTP SMS API | OTP SMS Verification | One Time Password
With SMS-based confirmation services that overcome challenges like high data volumes, message delays, and geographical barriers, OTPs (One-Time Passwords) are indispensable for online transactions. From bill payment confirmations and account activations to user registration verifications and mobile number validations, our solutions provide reliable authentication wherever it is essential.

How to Utilize Our OTP SMS and OTP SMS API Services
- Use OTP verification to be sure that your clients data remains secure.
- Add an extra fold of security with OTP verification to complete a transaction securely.
- Use the OTP service to verify users before password resets, instead of relying on links or verification codes sent via email.
- Add an additional layer of security to your website and apps.

First Info Advertisement Company Advantage
- Proprietary Routing Algorithm for Re-Routing Failed SMS Through Backup Operators.
- Direct Connectivity With TIER-1 Telcos To Provide Average Delivery 2-6 Sec
- In-house Built Routing Algorithms Ensure Timely & Rapid Delivery Of Messages.
- Focus On Growing Your Customer Base While We Take Care Of Infrastructure.
- Receive Real-time & Detailed Delivery Reports Straight From The Operator End.
- Pay Only For OTPs Delivered Within 15 Seconds & In First Attempt Via Primary Operator.

OTP SMS & OTP SMS API Features
First Info Advertisement Company Premium OTP SMS & OTP SMS API Services are extensively used by Banks, Schools, Shipping, e-commerce Website and other businesses as well.
OTP SMS & OTP SMS API FAQ's
What is OTP SMS?
OTP SMS enhances security and ensures safe transactions by mitigating potential threats. With system-driven authentication, transactions are completed within seconds, providing a seamless user experience. Commonly referred to as two-factor authentication, this method is a robust safeguard against fraudulent practices like phishing and keylogging. Widely adopted by banks, e-commerce platforms, and payment gateways, OTP SMS offers reliable protection against unauthorized activities.
How OTP SMS work ?
First, an OTP SMS verification request is initiated. First Info Advertisement Company then generates the OTP and delivers it to your customer’s mobile number. The customer enters the unique OTP on your app or website, and it is instantly verified, ensuring a seamless authentication process.
Why implement OTP SMS API ?
The OTP SMS API enhances security for both your business and customers. One-Time Passwords (OTPs) provide a more secure alternative to traditional static passwords and can even serve as a complete replacement for authentication purposes.
Why Is It Beneficial?
Bulk OTP SMS ensures user approval within 15-30 seconds. If the user fails to enter the provided PIN within the specified time, it becomes invalid. For added security, we also offer external OTP generation and validation for financial and banking systems, enabling OTPs to be generated outside the core system. One-Time Passwords (OTPs) remain the most reliable method to protect against fraudulent activities.
Reliable OTP SMS & OTP SMS API Price in India?
We provide India’s most feature-rich, fast, and reliable OTP SMS and OTP SMS API services at highly competitive prices. Our web-based software is completely free to use—simply purchase SMS top-ups as needed. With high-quality connections to mobile networks, we ensure the fastest delivery of your messages. Additionally, our OTP SMS API is designed to be exceptionally user-friendly, enabling you to build applications in just minutes using our sample files available in all major programming languages.
Ready to go for
OTP SMS & OTP SMS API Service
The easiest way to send secure
messages to your customers