The first thing you need to know is How to get a etherscan api key or a polygonscan api key. Etherscan API Key Go to etherscan.io and create an account if you don't have one, if you have one just sign in. After signing it, Click on your profile and ...
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Abah Victor Eche
I'm a Blockchain developer
It will be nice if you post more of this processes, it has been helpful