Phone Verify API 2024

Phone number validation and verification is an essential step in any application that requires user sign up or authentication. Without it, you risk getting inaccurate data, dissatisfied customers, and a bad App store review.

In this article, we’ve rounded up seven of the best phone verify API 2024 that offer features that are ideal for business use. Learn about the different platforms, how they work, and their pricing plans.

Phone Verify API: How to Securely Authenticate Users

Abstract’s Phone Validation and Verification API allows you to check whether a phone number is valid or not, and retrieves a combination of carrier and line type details. In addition, it provides valuable geographic information such as the country and sometimes even the city of origin.

The API also offers several fraud detection features that allow you to identify high-risk users or suspicious numbers. These include a Fraud Score, which indicates the likelihood that a phone number has been associated with recent malicious behavior, and a Low-Quality User Flag, which helps identify duplicate users or those who have used a fake or stolen number to register for an account.

The API also lets you specify a content language for SMS verification, which can be useful for apps that require the verification code to be sent as an SMS message to the user. This can be done by adding the ‘Accept-Language’ header to the initiate verification request. If the header is not added, the default SMS template for the platform will be used.