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One-Time Passcode Verification (OTP)

By Twilio

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This app will show you an example of how to build a one-time passcode (OTP) experience using SMS, voice, or email* with the Twilio Verify API.

This sample uses function templates to quickly create and deploy serverless functions you can use to interface with the Twilio Verify API from your production application. The interface provided shows off available features including channel selection and language preference.

verify.png

How it works:

  1. User enters their phone number or email
  2. App generates an authentication token
  3. App sends the token via selected channel to the user
  4. User enters the correct token
  5. App verifies the token

For more information, check out this blog post on serverless phone verification. For interface best practices including retry logic and channel fallback, check out best practices for managing retry logic with SMS 2FA.

*Note: email channel requires additional configuration, follow the instructions in the docs.

Launch and test this app in a few minutes with Quick Deploy. No server needed. Quick Deploy will automatically configure and deploy this app using Twilio Functions. Learn more about Twilio Functions
Step 1:Log in to Twilio
Step 2:Set up your application
Step 3:Deploy your application and try it out!
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This will use the details entered above to deploy your application to Twilio Functions. You will be able to view the application in the browser and edit it using the Functions UI. Learn more about Twilio Functions
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Step 4:View and edit your application
Once deployed, any changes to the fields above will not be applied to your app. To make changes, here are two options
Refresh the page, edit customizations and re-deploy the application
Edit your customizations directly in code
Why use Quick Deploy?
No coding required to launch
Easy to edit and iterate post launch
No server management
Scales automatically
Secure by default

Don't see what you want? Request a code sample Explore Docs

Questions about scaling, pricing, or which products/features to use? Get a consultation

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