Cross-L2 Bridge-and-Batch-Send Tool (Arbitrum to Base)

WHAT IT DOES

Cross-L2 Bridge-and-Batch-Send Tool is a specialized DeFi tool that combines cross-chain bridging with batch token distribution in a single unified workflow. The tool bridges ERC-20 tokens from Arbitrum to Base via a canonical bridge, then automatically distributes them to multiple recipients in a batched transfer on Base. Instead of manually bridging tokens, waiting for finality, then submitting individual transfers for each address, this tool streamlines the entire process—you provide the bridge amount, recipient list, and token addresses on both chains, and the tool coordinates the cross-chain operation and batch distribution. This dramatically reduces gas costs, eliminates repetitive manual work across chains, and ensures that once tokens arrive on Base, they are distributed atomically to all recipients. The tool is ideal for cross-chain airdrops, ecosystem incentives, and any scenario where you need to move liquidity from Arbitrum to Base and distribute it efficiently.

HOW TO USE

Connect your Web3 wallet to Arbitrum (the source chain). Enter the token contract address on Arbitrum that you wish to bridge. Enter the corresponding token contract address on Base (the destination chain) where recipients will receive their tokens. Specify the total bridge amount—this must be sufficient to cover all recipient amounts plus any bridge fees. Paste or upload your list of recipients in the format "address, amount" with one entry per line—amounts represent the tokens each recipient will receive on Base. The tool parses the list and calculates the total distribution amount, ensuring it does not exceed the bridge amount. Review the sender contract addresses on both chains, the fee, and the contract owner for transparency. Click the bridge-and-send button, review the transaction in your wallet, and confirm. The tool initiates the bridge transaction from Arbitrum to Base, then once the bridge is confirmed, executes the batched transfer to all recipients on Base.

MECHANISM: BRIDGE-AND-BATCH ORCHESTRATION

The tool interacts with the canonical Arbitrum-to-Base bridge (via the standard L2-to-L2 bridge infrastructure) to transfer tokens from Arbitrum to Base. It uses the shared BotGentz sender contracts on both chains—the source contract on Arbitrum handles the bridge initiation, and the destination contract on Base handles the batched distribution. The tool calculates the total tokens required on Base (all recipient amounts plus the sender contract fee) and ensures the bridge amount covers this total. It approves the Arbitrum sender contract for the bridge amount, then initiates the bridge transaction. After the bridge is confirmed on Base, the tool executes a batchTransferERC20 call on the Base sender contract, distributing tokens to all recipients atomically. The entire operation is designed to minimize cross-chain friction while maintaining atomicity on the destination chain—if any recipient transfer fails on Base, the entire batch reverts, ensuring no partial distributions. The tool reads the fee() function live from both sender contracts, displaying accurate cost estimates before execution.

WHAT IT CANNOT SEE

This tool reads no on-chain data directly. It does not verify that recipient addresses are valid, that the sender has sufficient token balance on Arbitrum, or that the token contract addresses provided are correct for each chain. It cannot guarantee that the bridge transaction will succeed—bridge failures, delays, or finality issues on either chain will prevent the batched send from executing. It cannot account for bridge delay, finality differences between Arbitrum and Base, or L2-specific gas mechanics. It cannot verify that the token addresses provided are the canonical bridged representations on each chain—different bridge paths may result in different token representations. It cannot provide fallback mechanisms if the bridge transaction reverts or if the batched send fails mid-execution. It cannot ensure that the batch order is preserved across the bridge or that recipients will receive tokens on Base if the bridge transfers a different token representation than expected. It does not account for gas price fluctuations during the bridge or batch execution phases.

PLEASE NOTE

This tool works exclusively on EVM-compatible chains and is designed specifically for bridging from Arbitrum to Base. It requires the user to have sufficient native ETH on both chains—for gas on Arbitrum to initiate the bridge, and for gas on Base to execute the batch send. The user is solely responsible for verifying the token contract addresses on both chains, recipient addresses, bridge amount, and distribution amounts before signing. Always test with a small batch first to confirm the setup is correct. The bridge process may take several minutes to complete, and the tool cannot expedite bridge finality. The sender contract addresses are hardcoded per chain and are publicly available for verification; no third-party custody is involved; you remain in full control of your wallet and funds at all times. Actual bridge infrastructure requires L2-to-L2 bridging protocols—this tool orchestrates the process but relies on the underlying bridge for cross-chain transfer.