Need service for OTP authentication using SMS

Hello,

Unfortunately, there isn't a specific AWS service dedicated to OTP authentication. However, you can set it up using AWS Lambda and AWS End User Messaging for SMS. Here's a helpful guide to get you started.

Hope this helps! 😊

AWS offers a service for OTP authentication via SMS through Amazon Pinpoint, which can be used in Asia including the Mumbai region. Here's what you need to know about the costs and setup:

For 10,000 OTP verifications per month, you would incur the following charges:

1. OTP verification fee: $0.045 per successful verification 10,000 x $0.045 = $450

2. SMS messaging costs: These vary by country in Asia. You'll need to check the specific rates for the countries you're targeting using AWS's pricing tool. The cost for SMS is in addition to the OTP verification fee.

3. Monthly Targeted Audience (MTA) charge: The first 5,000 unique endpoints you target each month are free. After that, you pay $1.20 per 1,000 endpoints. If all 10,000 OTPs are for unique endpoints, you'd pay for 5,000 additional endpoints: 5,000 / 1,000 x $1.20 = $6

There are no specific charges mentioned for first-time setup. However, you should be aware that in some countries and regions, you may need to obtain a dedicated phone number or origination ID before sending SMS messages. For example, in India, you need a registered sender ID, which includes a Principal Entity ID (PEID) and a Template ID.

To use this service, you'll need:

1. Amazon Pinpoint with SMS capabilities enabled
2. AWS account with production access
3. An active origination identity (like a dedicated phone number or sender ID, depending on the country)

Remember that pricing can vary based on specific regions and countries, so it's best to consult the AWS pricing page or contact AWS directly for the most accurate and up-to-date information for your specific use case in Asia.
Sources
AWS End User Messaging Pricing
Related to AWS Pinpoint SMS pricing model in Asia Mumbai Region | AWS re:Post
Generate one-time passwords (OTPs) with Amazon Pinpoint - Amazon Pinpoint