SendOTP 2.0

with Invisible Verification

Our dedicated OTP Platform – SendOTP 2.0 Implements mobile number verification, 2-factor login, OTP protected transactions with enhanced security and speed.

SendOTP 2.0

Regular OTP

How it works

A comprehensive solution for 2FA

Pin Generation

Our OTP service platform provides the back-end logic needed for PIN generation (OTP) so you don't have to. Each code is tied to an individual user and can only be used once. Each OTP is randomly generated and is unique per user and action.

Number Lookup

Save money and increase conversion rates with our OTP SMS service’s number validation feature. Ensure that the OTP that is being sent goes to a valid number and not an invalid one. Our system catches any invalid number and restricts sending OTP to those numbers. 

Voice Failover

Voice-based 2FA adds the text-to-speech capability to the standard 2FA process, enabling you to place calls and deliver user authentication PINs via voice audio. When an SMS OTP fails to get delivered to the user, adding a voice failover message can help push delivery rates close to 100 percent. 

Global Coverage

Deliver your authentication PINs to users regardless of their location. With MSG91’s OTP service global coverage spanning 800 networks and 190 countries, you can deliver your one-time PINs with the best delivery rates and speed available on the market.

5-minute setup

We made enabling 2-factor authentication a cake walk!

Secure your Website/App in 2 minutes by 2FA (mobile verification).


Ask us anything!

An OTP verification is a code consisting of a string of characters and numbers sent to users for security and is a part of the two-part authentication system which is provided by OTP service providers. This is created to reduce the risk of account details being used for vindictive purposes, protecting bank account details, secure private data, and for online security.
MSG91 Send
OTP service ensures that each customer gets a separate and unique OTP and can be used only once. This process alerts the website about any fake users and emails who may want access to the business accounts.

SendOTP is a one-time password mechanism that provides the feature of voice call backup service which ensures data security and instant delivery with dependency on the device for the verification process, whereas SendOTP 2.0 is a dedicated mobile verification platform that offers invisible OTP verification with added security and reliability along with auto verification.

Most online transactions require 2- step verification and SendOTP 2.0 is the advanced version of SendOTP. This OTP service works like magic for data security. To get the invisible verification done you must have a dependency on a mobile device with an active internet connection. If your device is not connected to the internet it will automatically drop the OTP into your inbox as SMS via SendOTP services.
Send OTP 2.0 has fewer chances of dropouts for receiving OTP also no additional cost is applicable.

For Businesses: MSG91 provides you with the SendOTP service where you can sign up and get OTP via SMS. SendOTP is a dedicated OTP platform that has a success rate of 99% with a verification time of fewer than eight seconds. The application will help you generate timely OTPs for your clients on their mobile numbers, this will enable two-factor authentication protocols before giving access to your website.

For the user: You have to enable two-factor authentication and request an OTP from the website by entering your registered mobile number and clicking on 'send OTP' and you will receive an OTP within a few seconds in your message inbox.

SendOTP services guarantee the OTP delivery with no delay. It requires approximately 8 seconds to deliver the message and if SMS is not delivered a backup voice call will be initiated at no additional cost.

It provides a combination of security and customer experience without revealing the personal information of the user. Also, the OTP services are highly cost effective for the users so that they do not overspend their needful resources.

The OTP application is an application where the company can generate and send passwords to the users, who can verify OTP online. The OTP application can be used for online payment gateway or services, as well. These applications make use of an OTP service generator to verify the authenticity of clients and new users. This is done by using back end logic to create codes. If your company does not have an inbuilt SMS OTP platform, then you can use service providers like MSG91 because they are the best OTP service providers in India. Taking on a credible OTP verification service will help you set up an account to send voice OTP and SMS OTP for verification, in a fast and secure manner.

It is a back-end cryptology process performed by an online OTP generator and is usually used by OTP service providers in India. The most common method for OTP generation is the Time Based One Time Passwords (TOTP). This is a time-synchronized OTP and the password generated is unique and created in real-time.

  • Type the code received by you via SMS in the space provided on the website or application.
  • If the OTP is correct, you will be able to fulfil your transaction immediately. If you fail to receive OTP within 30-45 seconds, you can request a new OTP by clicking on the “generate a new OTP” option.
  • Websites nowadays have an automated internal OTP verification system. This system keeps a track of the OTP once it is received in the SMS. In some cases, you also have an option to verify OTP through a phone call.