Repeat Scam Contract Blocklist Checker

WHAT IT DOES

Repeat Scam Contract Blocklist Checker is your transaction security tool that protects you from known scam contracts. It automatically intercepts pending transaction details from confirmation pages, extracts the target contract address, and checks against a comprehensive blocklist of known scam contracts including rug pulls, phishing contracts, and malicious approval drainers. When a contract matches the blocklist, the tool displays a RED ALERT warning with the blocklist source and reason for the flag. It provides one-click report functionality for new suspected scams, maintains an auto-updating blocklist from community submissions, sends immediate alerts for blocklist matches, and supports custom user blocklist additions for personal security preferences.

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 and initiate a transaction. When the confirmation dialog appears, the tool automatically detects the contract address and checks it against the blocklist. The panel displays the result—RED ALERT with reason if blocked, or a clean status if not found. Use the "Report as Scam" button to submit new suspected scams to the community blocklist. Add contracts to your personal blocklist using the "Add to Blocklist" button. The panel shows total blocklist entries and user-added entries.

COMMUNITY-SOURCED SCAM CONTRACT BLOCKLIST ENGINE WITH USER REPORTING

Unlike simple security tools that only check against a static list, this tool implements a community-sourced blocklist engine that grows through user reports. The engine maintains a multi-source blocklist combining an initial known-scam database with user-submitted additions. Each blocklist entry includes the contract address, reason for flagging, source attribution, and severity level (high/critical). When a pending transaction is detected, the engine performs a case-insensitive address lookup across the combined blocklist. If a match is found, the system triggers a RED ALERT with animated border pulsing and immediate browser notification. The reporting feature allows users to flag new suspicious contracts directly from the confirmation page, with the report being added to the local blocklist and queued for community distribution. The user blocklist is stored locally, allowing personal security preferences while maintaining compatibility with the broader community blocklist.

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 the contract address, blocklist status, reason if blocked, source, severity level, and total blocklist statistics.

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 tool cannot detect scams that are not already on the blocklist and relies on the page exposing contract address in a detectable format. Community blocklist may have false positives or miss new scams. No user data is collected or transmitted—all blocklist data stays local in your browser storage. The tool provides security awareness assistance but does not guarantee detection of all malicious contracts.