I am a WordPress developer who creates custom themes and plugins. Part of this involves using the native WordPress get and post api systems, as well as cURL and front end jQuery ajax calls to pull data from internal and external sources, depending on whether the data action happens on the server side (PHP & WordPress) or the client side (jQuery & Ajax). If you are pulling live data, how your page caching processes, especially if you are pulling cryptocurrency prices which is highly dynamic, the situation in which you use client side API calls maybe a significant factor. Additionally to being a freelance WP developer, I am also developing a number of platforms for small businesses and startups to get online and promote their services as a method of making business scalable through a SaaS approach.
Originally I am from the UK (native English speaker), but currently live in Finland. I have some knowledge from the media about cryptocurrencies. However, I currently have my business premises in a shared workspace with other startups, including cryptocurrency miners (bitcoin) and investment brokers.
I would like to know more about this project, and would suggest that we have an initial consultation and planning phase to any ongoing work. I would suggest that this would be around 5 hours work, including research into the APIs and industry. In terms of how we create an online store depends on a great many factors, and whether there are standard industry tools that we can use.