How to check the balance of the list of 1 million Bitcoin Addresses? Is there such a program?
In what format you have those Addresses? As aplistir say, you can download the file about addys with balance and then compare it with your addys list, You could make an script for this... Lets supose you have your addys on a text file, first you have to download this
https://balances.syndevio.com/ ( balances-bitcoin-20190611-0000 (673317892 bytes, 2019-06-11T00:20:22+00:00 - sample) )
Then a code llike:
for a in $(cat myAddyList.txt)
do
cat balances-bitcoin | grep $a >> final.txt
done
With this bash script you will generate a file with the addys and balance...