If you have Bitcoin Core running with a synchronized blockchain, you are halfway there. Bitcoin Core has an API you can call from the Linux command line. There are a few libraries and tutorials. [Here's one](https://www.codewithc.com/how-to-program-bitcoin-with-python-including-the-basics-and-getting-started/).

chaoticalHeavy

I assume there’s some code library you can use that would allow you to supply a private key and would tell you the balance of coin found on the blockchain for that key. I don’t know where to look for such a library. 

WeAreAllSatoshi

i have 37200 private keys and only one will work. how can i automatice the process of try every private key? it´s a Pay-to-Public-Key-Hash adress (papaer wallet) so i will have to import or sweep the funds to a new wallet like samourai wallet. There is some way to not do it manually?