curl https://mainnet.optimism.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}'
Returns the current client version.
This method will use 20 Compute Units.
None
string - The current client version 20 Bytes - addresses owned by the client