Our OTP SMS gateway delivers large volumes of messages in a timely manner. When combining SMS with Voice, delivery of your SMS OTP verification is guaranteed at all times.
Benefit from enterprise scalability with our easy API integration and configuration. Generate and deliver OTPs via SMS or Voice, and verify their response.
Implementing SMS or Voice OTP protects your customers data and extends your level of GDPR compliance by adding an extra later of security.
Easily authenticate new users, secure account logins, and safeguard transactions with One Time Passwords.
Reach your customers wherever they are and send your OTPs via SMS. Even when users don't have access to the internet, they can still make use of this multi-factor authentication solution.
Fast and reliable global delivery on any mobile device
Determine code length from 4 to 8 digits
Send from a local phone number or sender ID
With Voice OTP, the password is received as a spoken message. It allows you to also reach users with limited sight and destinations that are not reachable by SMS.
Use Voice as a backup in case your SMS is not delivered
Available in different spoken languages and voices
Push your delivery rates close to 100 percent
Fast delivery of time-critical messages are guaranteed
Our platform is connected to 2000 operators worldwide
Rely on our ISO 27001 certified redundant platform
Benefit from our round-the-clock and in-house support
Get clear control and insights on your costs and traffic
When creating an account, Tantan asks for the mobile phone number of the user. This number is verified by sending a One Time Password via a text message.
Asian Dating App Tantan
The registration for the Formula 1 required a unique OTP via SMS code. Due to this filtering, more than 11% of the requests have already been blocked because they turned out to be fraudulent.
Formula 1 Heineken Dutch Grand Prix
Easily integrate our SMS or Voice One Time Password API into your existing systems and start sending One Time Passwords worldwide. There are several example codes available for different programming languages for both our SMS as Voice API.Get the Docs on GitHub
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