Developers can now add custom ABIs to any smart contracts on Etherscan. Adding custom ABIs introduces a new way to interact and debug smart contracts.
The Token Balance Checker on Etherscan is a flexible tool that allows users to look up the token historical balance at a specific Block No or **Date.
Etherscan Developers API Keys Implementation.
During the enforcement of the API key requirement, developers will expect the return errors listed, where an API key is not in use or exceeding the rate limit.
There are two types of address in Ethereum: Externally Owned Address (EOAs) and Contract Address.