The idea of being able to "see" true volume of different coins is very valuable. Looking at the website i real like the UI, it's clean, easy to navigate, and responsive. Haven't tried out the API so cannot speak to that.

The fundamental core of this project is the accuracy of the algorithm used for filtering out wash trade, of which I still have no clue on how it is done after reading you article (https://medium.com/@Dwynr/building-a-website-that-shows-real-prices-and-trading-volumes-of-cryptocurrencies-aa4d9a2f4772). If the algorithm are just detecting certain trading patterns, then I don't see how it can be used to detect wash trade with sufficient accuracy since exchange might have or come up with sophisticated wash trading patterns.

That being said, I do believe idea is still valuable even if the algorithm only filters out a majority of the fake volumes rather than 100%.

Great job OP.