Just-In-Time Liquidity Helper

WHAT IT DOES

Just-In-Time Liquidity Helper is your smart swap sizing tool that helps you optimize trade execution. It watches DEX swap pages and liquidity pool interfaces, detecting current token pairs, swap amounts, and estimated price impact in real-time. The tool monitors pool liquidity and slippage projections, then calculates the optimal swap size to minimize slippage while maintaining acceptable execution speed. It provides real-time liquidity depth indicators with visual bars, displays recommended swap sizes for low/medium/high slippage tolerance, shows price impact curves for different swap sizes, supports one-click preset sizing based on your selected slippage tolerance, and tracks liquidity changes over time.

WHERE IT RUNS

This script runs on all major DEX interfaces including Uniswap (app.uniswap.org), SushiSwap (app.sushi.com), Curve (curve.fi), Balancer (balancer.fi), 1inch (1inch.io), CowSwap (cow.fi), major NFT marketplaces including OpenSea (opensea.io), Blur (blur.io), LooksRare (looksrare.org), Zora (zora.co), Rarible (rarible.com), Foundation (foundation.app), and Etherscan (etherscan.io). It works on swap pages, liquidity pool interfaces, and any page displaying token pair and liquidity information.

HOW TO USE

Install the script through the BotGentz userscript manager. Click "Connect Wallet" to link your EVM wallet extension. Navigate to any supported DEX swap page. The tool automatically detects the token pair and liquidity data, displaying real-time analysis in the panel. The panel shows pair, price, liquidity level with a visual bar, current amount, estimated price impact, and recommended swap sizes for different slippage tolerances (0.1%, 0.5%, 1%, 2%, 5%). Use the "Quick Presets" to set custom amounts with one click—click any preset size to automatically fill the swap amount. Configure your default slippage tolerance in settings to tailor recommendations to your risk preference.

LIQUIDITY DEPTH AND PRICE IMPACT MODELING ENGINE WITH OPTIMAL SIZING

Unlike simple slippage calculators that only show the current estimate, this tool implements a comprehensive liquidity depth modeling engine that evaluates swap execution across multiple size tiers. The engine extracts pool liquidity data from the page using adaptive DOM parsing, then applies a price impact model based on the constant product formula (x × y = k). For a given swap size, price impact is calculated as: impact ≈ (size / liquidity) × 0.5 × 100%. The engine then calculates optimal swap sizes for five slippage tolerance levels (0.1% to 5%), providing clear recommendations based on your risk preference. The price impact curve visualization shows how impact increases with swap size, helping users visualize the trade-off between size and execution quality. Liquidity levels are classified as High (>100k), Medium (>10k), or Low, with color-coded visual indicators that provide immediate context for pool depth.

THE PANEL

The floating panel is fully draggable and snap-to-edge enabled. You can collapse it to a compact bubble when not in use, resize it to your preferred dimensions, and it remembers its position across page loads using persistent storage. Press Escape to quickly dismiss the panel. The panel displays token pair, price, liquidity level with visual bar, estimated price impact, recommended sizes by slippage tolerance, and quick preset buttons for one-click sizing.

PLEASE NOTE

This script requires the free BotGentz extension to be installed in your browser—it does not run as a standalone extension. You also need a real EVM wallet extension already installed and configured. The tool cannot fetch real-time pool liquidity data beyond what is displayed on the page and relies on the page exposing liquidity and slippage data in a detectable format. Price impact projections may differ from actual execution due to market movement. No user data is collected or transmitted—all settings stay local in your browser storage. The tool provides execution optimization assistance but does not guarantee exact price impact outcomes.