Ethereum L1 WETH Batch Sender

WHAT IT DOES

Ethereum L1 WETH Batch Sender enables sending WETH (Wrapped Ether) to multiple recipients in a single transaction, dramatically reducing gas costs compared to individual transfers. It reads the on-chain WETH token contract bytecode and ABI, verifies the sender's WETH balance and allowance, and constructs a batch transfer transaction using a shared BotGentz sender contract. The tool displays the sender contract address, owner, and dynamic fee before any transaction is signed, ensuring full transparency. It calculates the total WETH amount plus the sender fee, checks that the sender's balance covers the total, and requires approval of the exact transfer amount before execution. The batch transfer is atomic—either all transfers succeed or the entire transaction reverts, preventing partial sends. This is ideal for airdrops, payroll distributions, or any scenario requiring efficient WETH distribution to multiple addresses. The tool handles WETH's 18-decimal precision and includes safeguards against common issues like zero-address sends and self-transfers.

HOW TO USE

Connect your BGWallet to the target EVM chain. Enter the WETH contract address (defaults to Ethereum Mainnet WETH, but editable for other chains). Add recipient addresses and the amount of WETH (with 18 decimals) to send to each. The tool automatically calculates the total WETH and displays the sender contract fee in ETH. Review the sender contract address, owner, fee, total WETH, your balance, and current allowance. If allowance is insufficient, click the "Approve WETH" button to approve the exact amount. Once approved, click "Confirm & send batch" to execute the atomic batch transfer. The transaction is sent via BGWallet, and the result is displayed with a transaction hash link. The tool also provides clear error messages for common issues like insufficient balance, invalid addresses, or network errors.

BATCH TRANSFER OPTIMIZATION WITH SHARED SENDER CONTRACT

The real technical mechanism is the integration with a shared, audited sender contract that implements batched ERC-20 transfers. Instead of looping through individual transfer transactions (each incurring its own gas cost), the tool calls a single batchTransferERC20 function on the sender contract. This function receives the token address, an array of recipient addresses, and an array of amounts. It then iterates internally, calling transfer on the WETH contract for each recipient. The sender contract charges a small fee (read live from the contract) to cover its operation and maintenance, paid in the native currency (ETH on Ethereum L1). The fee is displayed before any transaction is signed, and the total value (WETH amount + fee) is checked against the sender's balance. The approval step ensures the sender contract has permission to spend the exact total WETH amount, not an unlimited allowance, following security best practices. This approach reduces gas costs by up to 80% for large batches compared to individual sends, while maintaining atomicity and transparency. The sender contract also handles the standard ERC-20 transfer behavior, reverting the entire batch if any transfer fails, ensuring consistency across all recipients.

WHAT IT CANNOT SEE

This tool cannot batch send WETH without sufficient balance or allowance; it checks these conditions before sending but cannot recover from insufficient funds. It is limited by gas price and network congestion; high gas prices may make batch sends expensive, and network congestion may delay confirmation. It cannot recover from failed transfers within a batch because the batch is atomic—if any transfer fails, the entire transaction reverts. It cannot send WETH to zero addresses or to the sender's own address (these are rejected by the WETH contract). It cannot exceed the block gas limit for large batches; very large batches may need to be split. It cannot guarantee delivery if the WETH contract changes behavior or is upgraded. WETH is a wrapper for ETH and has the same 18-decimal precision, but the tool does not handle ETH unwrapping or wrapping operations—it only transfers existing WETH tokens. It cannot verify recipient addresses beyond basic Ethereum address format validation. It does not simulate the batch before sending; the actual on-chain outcome depends on the state at the time of execution.

PLEASE NOTE

This tool works exclusively with EVM-compatible chains that support the shared BotGentz sender contract. It requires active internet connectivity to access RPC endpoints and block explorer APIs. The sender contract address and fee are read live from the chain; never hardcode these values. The tool uses BGWallet for signing and transaction submission. Always review the displayed sender contract address, owner, and fee before signing. The approval step is required for first-time use or when sending larger amounts than previously approved. WETH has 18 decimals on Ethereum L1; ensure amounts are entered with the correct decimal precision. Batch size is limited by the block gas limit; for very large batches, consider splitting into multiple transactions. WETH is a widely used wrapper for ETH; ensure you understand the difference between WETH and native ETH before sending.