NFT Delisting Watcher

WHAT IT DOES

NFT Delisting Watcher watches the current page for NFT listings, maintains a persistent history of listed NFTs by ID, tracks when NFTs are removed from the page (delisted), and triggers alerts with the last known price and delisting time for monitoring market activity. The tool helps you track which NFTs are being taken off the market and when, providing insights into market dynamics.

WHERE IT RUNS

This tool works on any webpage that displays NFT listings with IDs and prices, including NFT marketplaces, collection pages, and trading platforms. It automatically detects listings and tracks their presence over time. The script runs on all websites as designated in its match patterns.

HOW TO USE

After installing the BotGentz extension, navigate to any NFT listing page. Click the NFT Delisting Watcher icon in your browser toolbar or use the keyboard shortcut (Alt+D). The panel will open. Click "Connect Wallet" to connect your real EVM wallet extension—this provides network context. Configure the check interval in seconds and clear history after hours. Toggle desktop notifications and sound alerts on or off. Click "Scan Now" to detect all current listings and start tracking. Click "Start Watching" to enable continuous monitoring. The panel displays a list of active listings and delisted NFTs with their last known prices. When an NFT is delisted, you receive a desktop notification and sound alert with the NFT ID, last price, and delisting time. Use "Stop Watching" to pause monitoring.

TECHNICAL SECTION — LISTING TRACKING AND DELISTING DETECTION ENGINE

Unlike simple page refresh tools, this tool uses a listing tracking and delisting detection engine. It first scans the page DOM to detect all NFT listings, extracting IDs and prices from page elements. The engine maintains a persistent history of all observed listings, storing each NFT's ID, price, first seen time, last seen time, and active status. On each scan, the engine compares the current set of visible listings against the history. NFTs that were previously active but are no longer visible are marked as delisted, with the delisting time recorded. The engine also tracks new listings as they appear and updates the last seen time for still-active NFTs. When a delisting is detected, the engine triggers multi-channel alerts with the NFT ID and last known price. This approach provides comprehensive delisting tracking without requiring external data sources.

THE PANEL

The panel is draggable anywhere on the screen and remembers its position per site. It can snap to the left, right, top, or bottom edges, or float freely. Collapse it to a small status indicator when you need more page visibility, and expand it again with a single click. Resize it vertically or horizontally to show more of the listing history. Press Escape to close the panel instantly. All settings (interval, clear history, notifications, sound) are saved globally and persist across sessions.

PLEASE NOTE

This tool requires the free BotGentz extension and a real EVM wallet extension already installed in your browser. EVM chains only—supports Ethereum Mainnet, Polygon, Arbitrum, and Optimism. Wallet connection is read-only; this tool never initiates transactions or signs messages. Cannot detect delistings that occur between page refresh intervals, cannot distinguish between manual delisting and sale completion, cannot track NFTs that are not visible on the current page, and cannot detect delistings on pages that use infinite scrolling without proper detection. Users must manually verify delisting reasons before acting on alerts. Websites change their layouts frequently; scripts may need updates, and we work to keep them current but cannot guarantee uninterrupted operation.