Executes a new message call immediately without creating a transaction on the block chain.


Supported on Arbitrum One (Nitro) only.


  • object - The transaction call object, should have this shape:
    • from - (optional) String of the address the transaction is sent from.
    • to - String of the address the transaction is directed to.
    • gas - (optional) Integer of the gas provided for the transaction execution.
    • gasprice - (optional) Integer of the gasPrice used for each paid gas encoded as a hexadecimal.
    • value - (optional) Integer of the value sent with this transaction encoded as a hexadecimal.
    • data - (optional) String of the hash of the method signature and encoded parameters.
  • quantity or tag - Integer block number, or the string 'latest', 'earliest' or 'pending'.


  • data - the return value of executed contract.

API Endpoint

The format of an Arbitrum Nova API endpoint is{{apiKey}}/arbitrum-nitro/

Here is an example:



curl{{apiKey}}/arbitrum-nitro/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"method":"eth_call","params":[{"from":null,"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"}, "latest"],"id":1,"jsonrpc":"2.0"}'


    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x"