Layer 2 Fast Withdrawal Comparator

WHAT IT DOES

Layer 2 Fast Withdrawal Comparator watches the current L2 bridge page for the user's connected wallet address and withdrawal amount, reads the user's pending withdrawal details from the bridge contract or page DOM, compares standard bridge withdrawal times against fast withdrawal service options (such as Hop Protocol or other third-party fast exit providers), calculates cost differences and time savings for each option, and displays a side-by-side comparison with recommendations based on user preferences. The tool connects to the user's wallet via window.ethereum, detects the bridge type (Arbitrum, Optimism, or Hop), reads the withdrawal amount and token type from the page, calculates the standard bridge withdrawal time based on the challenge period (7 days), estimates fast withdrawal times (approximately 15 minutes), computes fees for both options, calculates the total cost including gas, determines the cost-benefit ratio, and provides a recommendation based on the user's preference for speed vs. cost savings.

WHERE IT RUNS

The tool runs as a panel inside your browser on L2 bridge pages at https://bridge.arbitrum.io/*, https://app.optimism.io/bridge/*, and https://app.hop.exchange/*. It works on the Arbitrum, Optimism, and Hop Protocol bridge interfaces where users can view withdrawal options. The tool connects to your real EVM wallet extension (MetaMask, WalletConnect, or any wallet injecting window.ethereum) to read on-chain data via eth_call and the ethers library loaded at runtime. No data is sent to any external server; all reads happen directly from the blockchain through your wallet provider.

HOW TO USE

Install the BotGentz extension, navigate to the Arbitrum, Optimism, or Hop bridge page with a withdrawal amount entered, and open the Layer 2 Fast Withdrawal Comparator panel. Set your minimum savings threshold in USD (default $10) — the tool will use this to determine if the cost difference is meaningful. Select your preference weighting from the dropdown — Speed First, Cost First, or Balanced — which controls the recommendation algorithm. Choose your alert preference — Panel only, Browser notification, or Both. Click "Compare" — the tool detects the bridge type, reads the withdrawal amount and token from the page, calculates standard and fast withdrawal options including fees and gas costs, determines the time savings and cost difference, and displays a side-by-side comparison with a clear recommendation based on your preferences. Review the output and use the recommended option for manual execution through the bridge interface.

MECHANISM — WITHDRAWAL OPTION COMPARISON WITH COST-BENEFIT ANALYSIS

This tool uses a withdrawal option comparison engine that evaluates standard bridge withdrawals against fast withdrawal services. The system first connects to window.ethereum and requests the user's wallet address. It detects the bridge type from the page URL (Arbitrum, Optimism, or Hop) to determine the appropriate standard withdrawal time (7 days for standard bridges). The tool reads the withdrawal amount and token type from the page or uses a default if not detected. It calculates the standard withdrawal fee as approximately 0.15% of the withdrawal amount, the fast withdrawal fee as approximately 0.30%, and the gas cost as approximately 0.05% of the withdrawal amount. All costs are converted to USD using token price estimates. The comparison engine then calculates the time savings (standard_time - fast_time) and the cost difference (standard_total - fast_total). The recommendation algorithm uses a weighted scoring system based on the user's preference: Speed First gives 70% weight to time savings, Cost First gives 70% weight to cost savings, and Balanced gives equal weight to both. The tool also applies the minimum savings threshold to filter out recommendations where the cost difference is negligible.

THE PANEL

The BotGentz panel is fully draggable, allowing you to position it anywhere on your screen without obstructing the bridge interface. It includes per-site position memory, so the panel returns to your preferred location each time you visit the bridge page. Snap-to-edge functionality lets you dock the panel to any side of the browser window. The panel collapses to a compact icon when not in use and expands with a single click. You can resize it to your preferred dimensions, and pressing the Escape key instantly closes the panel. All interactions are smooth and intuitive, designed to work alongside your bridging workflow.

PLEASE NOTE

This tool requires the free BotGentz extension and a real EVM wallet extension (such as MetaMask) already installed in your browser. EVM chains only — currently supports Ethereum mainnet bridging to Arbitrum, Optimism, and Hop Protocol. This is an analysis and comparison tool only — it does not execute withdrawal transactions automatically. The tool cannot guarantee that fast withdrawal service quotes remain stable at execution time. It cannot account for slippage or price differences between L1 and L2. It cannot read withdrawal data from L2 networks not supported by the bridge. It cannot verify the availability or liquidity of fast withdrawal services at the moment of execution. It cannot predict future fee changes or service availability. It cannot read private wallet information or transaction intentions. All blockchain reads are performed directly through your wallet provider; no data is stored or transmitted beyond your browser. Websites change their layouts and content structures regularly; while we continuously update the extraction logic, some pages may require script updates. Always verify all withdrawal details, fees, and service availability independently before executing any transactions.