anjanesh I 100% DO NOT recommend LinkMink. They've not answered our support inquiries in months and seem to have abandoned their customers to a useless ✨AI chatbot🙄. We'll likely be migrating our affiliate program to a new provider in the coming months.
That said, if you are interested in their API it is partially documented at: https://linkmink.com/docs/api. There's not a whole lot there but I suspect there are more public endpoints which are not documented. If you have a LinkMink account and want to try to explore the API further then I recommend using your browser's dev tools to see what kind of XHRs etc are being made as you navigate around the site.