Base API

# Get ETH balance for an address on Base via PRO API
curl "https://api.blockscout.com/v2/api?chain_id=8453&module=account&action=balance&address=0xYOUR_ADDRESS&apikey=proapi_YOUR_KEY"

https://api.blockscout.com/v2/api?chain_id=8453&module=account&action=txlist&address=0x...&apikey=proapi_xxx

https://api.blockscout.com/8453/api?module=account&action=txlist&address=0x...&apikey=proapi_xxx

https://api.blockscout.com/8453/api/v2/addresses/0x.../transactions?apikey=proapi_xxx

curl -H "content-type: application/json" \
  -H "authorization: Bearer proapi_xxx" \
  -X POST \
  --data '{"id":0,"jsonrpc":"2.0","method":"eth_blockNumber","params":[]}' \
  https://api.blockscout.com/8453/json-rpc

// Before (Etherscan V2)
const resp = await fetch(
  `https://api.etherscan.io/v2/api?chainid=8453&module=account&action=balance&address=${addr}&apikey=${ETHERSCAN_KEY}`
);

// After (Blockscout PRO API)
const resp = await fetch(
  `https://api.blockscout.com/v2/api?chain_id=8453&module=account&action=balance&address=${addr}&apikey=${BLOCKSCOUT_KEY}`
);