Retrieves the ERC-20 token balance for a specified address at a given block height.
curl "https://api.etherscan.io/v2/api?chainid=1&module=account&action=tokenbalancehistory&contractaddress=0x57d90b64a1a57749b0f932f1a3395792e12e7055&address=0xe04f27eb70e025b78871a2ad7eabe85e61212761&blockno=8000000&apikey=YourApiKeyToken"
{ "status": "1", "message": "OK", "result": "135499" }
1
8453
account
tokenbalancehistory