The cost of financial market data has continually risen. With many free or cheap alternatives like Yahoo Finance no longer operating, the demand for accurate and easily accessible market data is rising. In this article, we have compiled a list of the best four stock market APIs currently on the market. The Financial Modelling Prep stock API delivers unrivalled accuracy and has a seemingly endless amount of data on specific stocks of your choosing. The MorningStar API is a good API to manage if you have lots of apps that you need to integrate with.