This extension let's users to save username of other friends on leetcode. I have developed my own API for this This extension is a little slow, so if you are a developer, please contribute https://github.com/leftover19/LeetcodeExtension here to make this extension more useful. If you want to access the API, you can access it here https://leetcodeapi.leftover.life or if you want to contribute to this API, you can do it here : https://github.com/leftover19/leetcodeapi/. A developer developing - Leftover
Thanks to all the developers.