Forex is an acronym for Foreign Exchange and this also means you will need a merchant account to do your trading. Since the market moves at speeds quicker than most people can blink, you will also need one that is expedient and excels when you are trading currency.
Your search will begin with the high risk merchant account servicers. The reason being is the risk the account servicers will be taking with your trades and your customers. The risk of a high amount of chargebacks, or refunds will be greater than most other accounts. How to get a high risk merchant account just takes a little research and some desire to locate the one that works for you.