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Constructor

constructor(address _usdc, address _treasury)
ParameterDescription
_usdcUSDC token address
_treasuryTreasury wallet for fee collection
Sets owner to msg.sender. Fee starts at 0%.

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Functions

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split

function split(address collector, uint256 amount) external
Split a USDC payment between the publisher (collector) and treasury.
ParameterTypeDescription
collectoraddressPublisher’s wallet address
amountuint256USDC amount in satoshis (6 decimals)
Requirements:
  • Not paused
  • amount between 1 and 1,000,000 (inclusive)
  • Caller has approved sufficient USDC on the splitter
Behavior:
  • Transfers amount - fee to collector
  • Transfers fee to treasury (if fee > 0)
  • Emits Split event

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setFee

function setFee(uint256 _newFeeBps) external
Update the fee in basis points. Owner only.
ParameterTypeDescription
_newFeeBpsuint256New fee in basis points (max 99)

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setTreasury

function setTreasury(address _newTreasury) external
Update the treasury address. Owner only.

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setPaused

function setPaused(bool _paused) external
Pause or unpause the contract. Owner only.

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Events

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Split

event Split(
    address indexed payer,
    address indexed collector,
    uint256 amount,
    uint256 fee
)
Emitted on every successful split() call.
FieldDescription
payerAgent wallet that sent the payment
collectorPublisher wallet that received the payment
amountGross USDC amount (satoshis)
feeFee deducted (satoshis)

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Constants

uint256 public constant MAX_FEE_BPS = 99;  // 0.99% — immutable

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State variables

VariableTypeDescription
owneraddressContract owner
treasuryaddressFee collection wallet
usdcIERC20 (immutable)USDC token
pausedboolPause flag
feeBpsuint256Current fee in basis points

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ABI (human-readable)

const SPLITTER_ABI = [
  "function split(address collector, uint256 amount) external",
  "function setFee(uint256 _newFeeBps) external",
  "function setTreasury(address _newTreasury) external",
  "function setPaused(bool _paused) external",
  "function owner() view returns (address)",
  "function treasury() view returns (address)",
  "function feeBps() view returns (uint256)",
  "function paused() view returns (bool)",
  "function MAX_FEE_BPS() view returns (uint256)",
  "event Split(address indexed payer, address indexed collector, uint256 amount, uint256 fee)",
];

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Fee calculation

fee = (amount * feeBps) / 10_000
net = amount - fee
Examples (at 99 bps / 0.99%):
Amount (USD)USDC unitsFeeNet
$0.0033,000292,971
$0.0110,000999,901
$0.10100,00099099,010
$1.001,000,0009,900990,100
At the current fee of 0%, all amounts go directly to the publisher.