One-time password / OTP

India's #1 SMS OTP Services Provider

One time password (OTP) is a password that typically contains a series of numbers & characters Like : 124DSC and is valid only for Single login. OTPs can support strong one-time authorization , enhanced security and protection against PIN attacks.

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Bulk SMS Messaging for OTP | OTP Bulk SMS | One Time Password

Our mission critical solution ensures security and convenience to enterprises.

SMS based confirmatory solutions that override heavy data volumes, message latency and geographies, OTPs(one time password) are highly useful in online transactions like bill payment confirmation, account activation, user registration verification, mobile number validation, etc. wherever reliable authentication support is imperative.

Secure Customer Data with OTP Authentication

How can use our OTP SMS services

  • Add an additional layer of security to your website and apps.
  • 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.
  • Instead of sending links or verification code via email, use the OTP service to verify users before password resets.


  • Direct Connectivity With TIER-1 Telcos To Provide Average Delivery 2-6 Sec.
  • Proprietary Routing Algorithm To Re-Route Failed SMSs Via Backup Operators.
  • Focus On Growing Your Customer Base While We Take Care Of Infrastructure.
  • In-house Built Routing Algorithms Ensure Timely & Rapid Delivery Of Messages.
  • 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 Features

OTP SMS Features

SMSGATEWAYHUB Premium OTP SMS services are extensively used by Banks, Schools, Shipping, e-commerce Website and other businesses as well.

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Case Studies

Use Cases


What is OTP SMS?

OTP SMS is used to avoid that threat and increase trade safety. When the authentication is done by the system, your trade gets completed in a scrap of seconds. It's also called as two factor authentication. These days fraudulent practices are really common splendors. Hence OTP SMS service provides a result to all these illegal exertion like phishing, keyboard logging etc. OTP SMS is used by banks,e-commerce hatches, payment gateways etc.

How OTP SMS work ?

Firstly Send OTP SMS Verification request then SMSGATEWAYHUB fetches the generated OTP and sends it to your customer's mobile number then customer enter the unique OTP sent by SMSGATEWAYHUB on your app or website and gets OTP verified instantly.

Why implement SMSGatewayhub OTP SMS API ?

OTP SMS helps protect your business and your customers. One time passwords(OTP) are more secure than traditional static passwords your customers generate. OTP may even replace them for authentication purposes.

Why Is It Beneficial?

Bulk SMS OTP does not take more than 15-30 seconds to approve the user. It becomes invalid if the user forgets to put the given pin number at the specified time. We also offer external generation and validation of OTP for finance and banking systems where there is a requirement of generating OTPs outside the banking system for security purposes.One time Password(OTP) is the best way to get secure from fraudulent activities.

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