Hot off the general repository is a new package for using the AlphaVantage API in Julia.
AlphaVantage provides a free tier of stock, fx and cyrpto data, with even intraday level of detail. You can use this package to easily get the data into your projects.
I’ve written a tutorial here: http://dm13450.github.io/2020/07/05/AlphaVantage.html
and you can view the project here: https://github.com/ellisvalentiner/AlphaVantage.jl