Yup. Also looking for this. I found something that runs on node.js, https://gekko.wizb.it/ It is automatic, but not that good, and it takes a long time to analyze it. I haven't really tested it extensively, as i found that manually trading was more reliable.

I hope to find something which can put my orders up faster, spreads them, and is able to cancel them in little to no seconds. Does anyone know if such a "bot" exists?