Build Your Own Passwordless OTP Auth on AWS Lambda

📰 Dev.to · Arseniy Potapov

Learn to build passwordless OTP auth on AWS Lambda for secure user authentication without managed services

intermediate Published 28 Feb 2026
Action Steps
  1. Set up an AWS Lambda function to handle authentication requests
  2. Configure an OTP service like Twilio or Nexmo to send verification codes
  3. Implement passwordless authentication logic using Node.js or Python
  4. Test and deploy the authentication function to AWS Lambda
  5. Integrate the custom auth solution with your application using API Gateway
Who Needs to Know This

Developers and DevOps engineers can benefit from this tutorial to implement custom authentication solutions for their applications

Key Insight

💡 Passwordless OTP authentication can be built on AWS Lambda using custom code and services like Twilio or Nexmo

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🔒 Build custom passwordless OTP auth on AWS Lambda for secure user authentication #AWS #Lambda #Auth

Key Takeaways

Learn to build passwordless OTP auth on AWS Lambda for secure user authentication without managed services

Full Article

I was adding authentication to a side project and started evaluating managed auth services. Auth0...
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