Contract

// SPDX-License-Identifier: MIT

pragma solidity 0.8.16;

contract BatchEth {
    struct SendInstruction {
        address recipient;
        uint256 amount;
    }

    /// @notice Send a specified amount of Ether to specified recipients.
    ///         ⚠️ If you send more Ether into this contract than the sum of amounts, somebody WILL snipe the remainder.
    ///         ⚠️ If any transfer reverts the whole batch reverts, try again and exclude that recipient.
    ///         ⚠️ If any recipient is (or becomes!) a smart contract it can cause its transfer to fail.
    ///         ⚠️ If any recipient is (or becomes!) a smart contract it can spend your gas, use limits.
    /// @param  instructions recipients and amounts to send each
    function batchEth(SendInstruction[] calldata instructions) external payable {
        for (uint256 index; index < instructions.length; index++) {
            (bool success,) = instructions[index].recipient.call{value: instructions[index].amount}("");
            require(success, string(abi.encodePacked("Failed: ", index)));
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

[{"inputs":[{"components":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct BatchEth.SendInstruction[]","name":"instructions","type":"tuple[]"}],"name":"batchEth","outputs":[],"stateMutability":"payable","type":"function"}]

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