eth_getCode - Validation Cloud

Returns code at a given address. This method will use 40 Compute Units.

Reference: Here

Parameters

DATA, 20 Bytes - address.
QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

params: [
  "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
  "0x2", // 2
]

Returns

DATA - the code from the given address.

// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x600160008035811a818181146012578301005b601b6001356025565b8060005260206000f25b600060078202905091905056"
}

curl https://mainnet.optimism.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", "0x2"],"id":1}'