USDT Approve-and-Batch-Send Combo Tool (Any L2)

WHAT IT DOES

This tool combines two essential steps for batch sending USDT on supported L2 chains (Arbitrum, Base, Optimism, Polygon, etc.): approving the BotGentz sender contract and executing the batch send. It reads your connected wallet address, chain ID (must be one of the L2 chains in the BULKSEND registry), USDT balances and decimals (auto-detected, typically 6 or 18 depending on the chain), recipient addresses, and the current allowance for the sender contract. The tool guides you through a two-step process: first, you approve the BotGentz sender contract for the detected L2 chain to spend the exact total USDT amount (with automatic handling of the USDT-specific approval reset pattern); second, you send the batch transaction to distribute USDT to all recipients. Both transactions are coordinated by the tool but remain separate on-chain transactions. You configure the recurring distribution parameters—amount per recipient, frequency, and duration—and each execution is a separate sequence of transactions that you sign and send.

HOW TO USE

Connect your wallet (supported L2 only), enter the USDT token contract address for that chain, and list recipients with their amounts (one per line). The tool will auto-detect the token decimals, parse the list, show you the total amount including the contract fee, display your USDT balance, and show your current allowance for the sender contract. You first click "approve" to grant the sender contract permission to spend the total USDT amount—the tool automatically handles the USDT approval reset requirement (setting allowance to 0 before setting a new amount if needed). After the approval transaction is confirmed, you click "send batch" to execute the batch transfer. Each step is a separate transaction that you must sign with your wallet. The tool does not automatically proceed after approval—you must verify that the approval succeeded before sending.

TECHNICAL MECHANISM

The approval step first checks if the current allowance is greater than zero. For USDT, the tool automatically resets the allowance to 0 before approving the new total amount, following the standard USDT approval pattern required by many USDT implementations. It then calls approve(address spender, uint256 amount) on the USDT contract. The batch send step calls sendERC20Batch(address token, address[] calldata recipients, uint256[] calldata amounts) on the BotGentz sender contract for the detected L2 chain. The fee is read live from the contract's fee() function and must be paid in ETH as part of the batch send transaction value. The tool checks your USDT balance and the current allowance against the total required before each step. All transfers are sequential within the contract, ensuring atomicity—if any transfer fails, the entire batch reverts. The tool does not cache fee, balance, or allowance data; it reads them fresh each time to avoid stale values.

WHAT IT CANNOT SEE

The tool cannot send native ETH or any token standard other than ERC-20. It cannot detect token tax or fee-on-transfer dynamics for non-standard tokens; if your USDT variant deducts a fee on each transfer, the amount received by recipients will be less than specified. It cannot recover incorrectly entered recipient addresses—invalid addresses are simply skipped. It cannot send to contracts that reject transfers (e.g., blacklisted addresses). The approve and batch-send are separate transactions—the tool coordinates them but does not execute them atomically; you must wait for the approval confirmation before sending. It does not automatically execute recurring sends; each execution is a separate sequence of transactions that you manually trigger. The tool assumes the user-provided token address is a standard USDT contract; it does not validate that the entered address is the canonical USDT bridge for that L2. USDT decimals vary and are auto-detected, but the tool cannot verify that the detected decimals are correct for the specific USDT variant you are using. The tool is limited to supported L2 chains only.

PLEASE NOTE

This tool works on any L2 chain in the BULKSEND registry where USDT is deployed: Arbitrum, Base, Optimism, Polygon, and others. It does not support Ethereum mainnet or other non-registered chains. The BotGentz sender contract is hardcoded and verified per chain; you can review its source code on the respective block explorer. Always confirm the fee, contract address, and allowance before signing any transaction. This tool is provided as-is; you are responsible for verifying recipient addresses and amounts.