Truecaller, the caller ID app that has become pretty much the standard for people who get a lot of random calls, has today announced that it’s launching a mobile web SDK that will allow mobile websites to authenticate users via their phone numbers without the need for pesky OTPs.

So basically, Truecaller is giving web-developers an incentive to implement its SDK on their website with the promise of higher user-retention, and it’s trying to get more users to install the app with the promise of quick and easy registration on a bunch of websites and apps that use its SDK. So far the SDK is being used by companies such as Shine.com, Oyo, and more to enable seamless authentication of their users.