Local Blocklist Manager for Site

WHAT IT DOES

Local Blocklist Manager for Site is your personal transaction security tool that puts you in full control of which contracts you trust. It intercepts pending transaction details from confirmation pages, detects the target contract address, and checks it against your personal local blocklist. The tool provides a complete management interface allowing you to add, remove, edit, and search blocklisted contracts with custom reasons and timestamps. It displays all currently blocklisted contracts with their details, shows blocklist statistics and recent additions, supports manual entry of contract addresses, provides one-click add from the current page, includes full import/export of blocklist data, and sends immediate alerts when a pending transaction matches your blocklist.

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), and major NFT marketplaces including OpenSea (opensea.io), Blur (blur.io), LooksRare (looksrare.org), Zora (zora.co), Rarible (rarible.com), and Foundation (foundation.app). It works on transaction confirmation pages, wallet approval dialogs, and any page displaying pending transaction details.

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 or marketplace. The panel provides a complete blocklist management dashboard. To add a contract, enter its address and a reason in the management section, or click "Add Current Contract" to block the contract currently detected on the page. Your blocklist is automatically saved locally. Use the search bar to quickly find entries. Export your blocklist as JSON for backup or sharing, and import previously exported blocklists. The tool automatically checks pending transactions against your blocklist and sends alerts when matches are found.

PERSISTENT LOCAL BLOCKLIST DATABASE WITH COMPLETE CRUD OPERATIONS

Unlike simple security tools that only check against external lists, this tool gives you full ownership of your security data through a persistent local blocklist database with complete CRUD (Create, Read, Update, Delete) operations. The database stores each entry with the contract address (normalized to lowercase for case-insensitive lookup), a user-provided reason, timestamp of addition, and source attribution. The management interface provides real-time search across all entries, allowing you to quickly verify if a contract is already blocklisted. The import/export functionality uses JSON format, enabling easy backup, transfer between browsers, or sharing with trusted parties. The auto-check feature continuously monitors the current page for contract addresses and instantly alerts you if a blocklisted contract is detected, providing immediate security awareness during transaction confirmation.

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 your wallet status, total blocklist entries, auto-check status, current contract status, and recent blocklist entries with their reasons.

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 for transaction interception. The blocklist is local only and not shared with other users unless exported. The tool relies on the page exposing contract address in a detectable format and cannot automatically detect scam contracts not already on the blocklist. No user data is collected or transmitted—all blocklist data stays local in your browser storage. The tool provides personal security management but does not guarantee detection of all malicious contracts.