CompleteA single API provides the full 2FA solution, from authentication management to message automation, spanning SMS and Voice.
SimpleJust give us a phone number and we’ll take care of the rest. We generate the codes, localise, use the fastest channel available, even fall back from SMS to voice when needed.
ConvenientUnlike other 2FA methods that may require special hardware or an authenticator app, our solution works with any phone number.
Smartly-pricedPay only for successful conversions or a flat monthly fee for frequent logins.
How two-factor authentication works
Intercept the login
A user logging into an account first confirms their username and password but, to be certain that the user is who they say they are, our Verify API gets involved.
Our Verify API reaches out
We send a one-time code — via SMS, voice or push notification — to the phone associated with that username and password.
The account owner confirms
When the code arrives on the phone belonging to the user associated with the account, the owner keys in the short verification code into the input box presented by the app.
Allow account access
Your app verifies that the entered code matches the code that was sent, confirming that the person attempting to access the account has the phone linked to that account. Your app can then give full access to the user.