That's a great idea. I remain pretty backlogged with R work for other things, but would love to dive in at some point. I'm aware of some R packages like rbitcoin and ethr. I haven't had a chance to play with them yet but their GitHub repos don't appear very active recently and they don't seem like extensive packages. My impression is rbitcoin is "the big one", but the version on CRAN looks to be from 2014, which is not a good sign. I will definitely try to play with them at some point and hopefully I won't find myself feeling like it's going to be necessary to reinvent those wheels. It would be ideal to skip over them as well as focus on more front end stuff that presents integrated output. What would be ideal is to have one package that pulled from all the popular blockchains, but I'm not aware yet how many this might be, how similar the various APIs are, how difficult that might become to maintain if the package is too generalized, etc. Would be a ton of fun though!