Secure Online Transactions With One Time Passwords.
Integrate our Two-Factor Authentication API to safeguard your data, accounts, and users transactions.
Secure Your Business and Accounts With One Time Passwords
Guaranteed Delivery
Our SMS gateway delivers large volumes of messages in a timely manner. By combining SMS with Voice, delivery of your OTP is guaranteed at all times.
Easy API Configuration
Benefit from enterprise scalability with our easy integration and configuration. Generate and deliver OTPs via SMS or Voice, and verify the response.
Bulletproof & GDPR compliant
By adding an extra layer of security you can extend your level of GDPR compliance. Implementing SMS or Voice OTP protects your customer's data.
How Does Our OTP API Work?
Build Your Own OTP Solution
Easily authenticate new users, secure account logins, and safeguard transactions with One Time Passwords.
Trusted by Brands Worldwide
Comprehensive Solutions for Two Factor Authentication
Quick Delivery of OTPs via SMS or Voice
Authenticate New Users
Let new users verify their phone to prevent spammers and bots from access to your platform and rule out bulk account creation.
Secure Account Logins
Protect your platform and accounts from data theft and let users sign in with an OTP via SMS or Voice messaging at each attempt.
Safeguard Transactions
Add an extra layer of security by implementing an OTP to verify accounts before users proceed with a transaction.
One Time Passwords via SMS
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.
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Fast and reliable global delivery on any mobile device
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Determine code length from 4 to 8 digits
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Send from a local phone number or sender ID
Send One Time Passwords via Voice Call
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.
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Use Voice as a backup in case your SMS is not delivered
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Available in different spoken languages and voices
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Push your delivery rates close to 100 percent
Why Choose CM.com as Your OTP Provider
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
How Other Companies Use Our OTP API
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
Our REST API Integrated Quick and Easy
Build With SDKs
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.
To the Docs on GitHubOTP Pricing
Volume Discount from 50.000 Messages
| Country | OTP via SMS (from) | OTP via Voice (from) |
|---|---|---|
| Country | OTP via SMS (from) | OTP via Voice (from) |
United Kingdom |
£ 0,0534 |
£ 0,0051 |
Pricing based on individual messages for a specific destination.
Integrate Our Powerful OTP API Into Your Software
Enhance your application security and manage user verification via SMS and Voice, with our reliable and secure two-factor authentication solution.
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