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SMS verification with retry logic and voice fallback

By Twilio

  • Verify
  • Twilio
  • Quick Deploy
  • Applications

Adding a retry buffer to your phone verification or authentication workflow can prevent:

  • Accidentally spamming a user with repeated text messages
  • Hitting API rate limits
  • Toll fraud or unnecessary spend

This project includes several user interface and user experience best practices for a verification workflow, incorporating the Twilio Verify API and the Twilio Lookup API. Learn more in the blog post: Best practices for managing retry logic with SMS 2FA.

If you prefer to test the Verify API channels for one-time passcodes (SMS, voice, and email), including message translations, you can check out the One-Time Passcode Verification (OTP) code exchange project.

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
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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
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Why use Quick Deploy?
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No server management
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