It is possible to open a forex account with 100 dollars. However, it is important to note that there are a few things to consider before doing so. First, it is important to understand that forex trading is a risky investment and that there is the potential to lose money. Therefore, it is crucial to have a solid understanding of the market before investing any money. Additionally, it is important to find a reputable broker who can provide you with the best possible deal. Finally, it is also worth considering using a mini account which will allow you to trade with smaller amounts of money and therefore minimize your risk.