Prediction Market Odds Change Alert

WHAT IT DOES Prediction Market Odds Change Alert watches the current Polymarket market page for the market's current odds, reads the current price/odds from the market contract or order book, monitors changes in odds over time, calculates the percentage change and volatility, detects significant price movements or sharp changes in sentiment, and displays alerts with odds updates, change percentage, direction, and recommendations when significant odds changes occur. The tool connects to the user's wallet via window.ethereum, reads the current odds from the market contract, stores historical odds values locally to track changes over time, calculates the percentage change between readings, determines the direction of movement (up, down, or neutral), and triggers alerts when the change exceeds the configured threshold with the specified direction filter. WHERE IT RUNS The tool runs as a panel inside your browser on Polymarket pages at https://polymarket.com/*. It works on any Polymarket market page where odds data is displayed. 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 any Polymarket market page, and open the Prediction Market Odds Change Alert panel. Set your odds change threshold percentage (default 5%) — the tool will alert you when odds change by more than this percentage. Select your direction filter from the dropdown — Both directions, Up only, or Down only — to control which movements trigger alerts. Select your monitoring interval from the dropdown — 10, 15, 30, or 60 seconds. Choose your alert preference — Panel only, Browser notification, or Both. Toggle "Auto-check on page load" if you want the tool to analyze automatically when you open the panel. Click "Monitor Odds" — the tool reads the current odds from the market contract, stores historical values, calculates the percentage change from the previous reading, determines the direction, and displays a comprehensive odds dashboard with change analysis. When odds change exceeds the configured threshold and matches the direction filter, the tool triggers alerts with the change percentage and direction. The odds monitor updates automatically at your chosen interval. Click "Refresh" to manually update the odds data. MECHANISM — ODDS CHANGE DETECTION WITH DIRECTION FILTERING AND VELOCITY ANALYSIS This tool uses an odds change detection engine that tracks prediction market prices and identifies significant movements. The system first connects to window.ethereum and requests the user's wallet address. It extracts the market name from the page URL to identify the current market. The tool reads the current odds from the market contract or order book, storing each reading in a local history variable. On each monitoring cycle, the tool compares the current odds against the previous reading and calculates the percentage change. The direction of movement is determined as UP (positive change), DOWN (negative change), or NEUTRAL (no change). The tool applies the direction filter to ensure only movements in the user's preferred direction trigger alerts. The urgency classification uses a multi-tier system: ALERT (change ≥ threshold and matches filter), or NORMAL (change < threshold or doesn't match filter). The tool also calculates the rate of change (velocity) to help users understand the speed of the movement. Recommendations are generated based on the direction and magnitude of the change. THE PANEL The BotGentz panel is fully draggable, allowing you to position it anywhere on your screen without obstructing the Polymarket interface. It includes per-site position memory, so the panel returns to your preferred location each time you visit a market 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 prediction market trading 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. This is a monitoring and alert tool only — it does not execute trade transactions automatically. The tool cannot guarantee that the displayed odds match the exact moment of execution due to price changes. It cannot account for market manipulation or flash crashes. It cannot read odds data from prediction markets other than Polymarket. It cannot predict future price movements or market sentiment. It cannot read private wallet information or trading intentions. It cannot guarantee that the odds movement represents a genuine market signal versus noise. 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 odds and price data independently before taking any action based on the alerts.