I am using
https://bitsgap.com/ for cryptocurrency arbitrage trading. It allows not only to find those deals, but also to execute them fast. If you provide only the information, then it is very hard to make any profit here (in my opinion)
I studied this service, talked to the developers, their project is interesting, but this is a different type of arbitration, more complicated and less profitable. In this type of arbitration there are disadvantages, as well as in ours. If you want such a service where by pressing 1-2 buttons you make a profit, it is not! In any case, you need to think, analyze.
Everywhere there are risks, especially in such a thing as cryptocurrency.