Since the popularization of multichain apps, most project's Github repos look like a ( shortened ) version of this.
ETHERSCAN_API_KEY=VZFDUWB3YGQ1YCDKTCU1D6DDSS
BSCSCAN_API_KEY=ZM8ACMJB67C2IXKKBF8URFUNSY
SNOWSCAN_API_KEY=ATJQERBKV1CI3GVKNSE3Q7RGEJ
ARBISCAN_API_KEY=B6SVGA7K3YBJEQ69AFKJF4YHVX
OPTIMISM_API_KEY=66N5FRNV1ZD4I87S7MAHCJVXFJ
ETHERSCAN_API_URL=https://api.etherscan.io/api
BSCSCAN_API_KEY=https://api.bscscan.com/api
SNOWSCAN_API_KEY=https://api.snowscan.xyz/api
ARBISCAN_API_KEY=https://api.arbiscan.io/api
OPTIMISM_API_KEY=https://api-optimistic.etherscan.io/api
As we gained increasing support from chains to build the best onboarding and developer experiences to help them succeed, they were fragmented.
ETHERSCAN_API_URL=https://api.etherscan.io/v2/api
ETHERSCAN_API_KEY=VZFDUWB3YGQ1YCDKTCU1D6DDSS
CHAINS=[1,10,42161]