Businesses use two-factor authentication (2FA) to block over 99% of automated account attacks on average. But historically, building your own 2FA has been laborious, and out-of-the-box solutions have limitations of their own. Telnyx offers SMS, Voice and Verify APIs that enable developers to quickly and easily incorporate accessible 2FA at any point in the customer journey.
Send passcodes via SMS, voice call, flash call or WhatsApp message.
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Instantly provision and configure phone numbers for calling and messaging in 200+ countries via the Telnyx Mission Control Portal.
Configuration guides to quickly add an authentication service to your app using SMS, Voice, Flash Call and/or WhatsApp.
Secure logins, authenticate devices, confirm account changes, register users, protect payments and stay PSD2 compliant with Telnyx’s Verify API.
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Set up your application to call the Telnyx Verify API when the user submits the correct criteria. This will trigger a PIN code to be sent via SMS, voice, flash call or WhatsApp to the phone number associated with that user’s account.
The user receives a code and enters it into your application’s PIN code input field. Your application then sends a request to the Verify API with the user’s details and entered PIN code to check if it’s correct.
If the code matches the one generated, the API will send a positive response, and your application can grant the user access in accordance with your configuration. If it isn’t, the API will deliver a negative response, and you can ask the user to try again or request a new code.
If you're worried about protecting your sensitive and personal information, learn how two-factor authentication can help.
We dive into how two-factor authentication works to add an extra layer of security, the different types of 2FA and more.
