Overview I started investing in peer to peer lending in 2014 through a site called Prosper. I thought peer to peer lending was a neat idea and could potentially earn lucrative returns. When I began, I chose each of my loan investments manually, but over time, I have automated this process by building a lending bot called ProsperBot that invests for me automatically. In this blog post, I’ll give a brief overview of peer to peer lending and walk through the process of building ProsperBot.