SMS OTP - Verification by SMS

Authenticate your customers using OTP (One-Time Password)

OTP (One-Time Password) SMS

OTP (One-Time Password) SMS

Afilnet helps you to make your business processes safer, thanks to the authentication OTP SMS you can validate the authentication of your customers.

OTP authentication allows you to validate the authenticity sending a SMS with an unique use code to your customer mobile




We generate the OTP codes dynamically for you

Personalize the length and the format of the password to generate.



We connect you to your clients wherever they are via SMS, text-to-speech, or email.

Worldwide coverage with more than 500 network operators, prices for any budget

Our API allows you the integration of OTP easily and fast


Our API allows you the integration of OTP easily and fast

Our system takes responsibility for generate and validate passwords for you

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Add a secure additional layer in your plattform, use a second secure layer in the access of your users thanks to 2FA SMS (two factor authentication SMS).

2FA is based in a double authentication, the first would be the user credentials and later the OTP password through SMS.

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Find out why our platform is the #1

Frequently asked questions about SMS OTP (Verification by SMS)

Here you will find the most frequent doubts of our clients about SMS OTP, if you have any other questions, please contact us

Yes, OTP SMS authentication / verification is compatible with all mobile devices that can receive SMS. Also, for fixed telephone numbers, OTP verification by voice is available.

OTP codes can only be used once. Once it has been done use of an OTP code must request a new one.

You must include OTP SMS codes in all business processes where you want to improve security and verify the identity of the user. These are normally included to login on a platform such as double authentication, but can also be generated to confirm the identity of the user performing the action.

An OTP SMS code guarantees that the user who identifies is the legitimate user, since it could only access the information through the code sent by SMS to the user's number.

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