Contract Deployment Alert for Site

WHAT IT DOES

Contract Deployment Alert for Site watches the current page for new smart contract deployments by monitoring transaction receipts and logs for contract creation events, and triggers alerts when a new contract is deployed by specified addresses or matching specific criteria (e.g., bytecode patterns or known factory contracts). It helps you track contract deployments from monitored developers, detect new factory deployments, or catch contracts with specific bytecode signatures.

WHERE IT RUNS

This tool operates as a userscript within the BotGentz extension framework, running directly in your browser on any website. It works on any EVM-compatible blockchain page—Ethereum, Polygon, Arbitrum, Optimism, and more—where smart contracts are deployed. The tool integrates seamlessly into your workflow, appearing as a draggable panel that stays accessible as you monitor the blockchain.

HOW TO USE

Add the wallet addresses you want to monitor for deployments in the "Monitor Setup" section (comma-separated). Optionally, add factory contract addresses to track new deployments from those factories. You can also specify a bytecode pattern (hex string) to match in deployed contracts. Configure your alert settings: set the refresh interval and toggle desktop notifications on or off. Click "Start Deployment Monitoring" to connect your real wallet extension, which will begin checking for new deployments at your specified interval. The panel displays a list of detected deployments with contract address, deployer, block number, and gas cost. Use "Check Now" for an immediate update, "Clear Deployment History" to reset the list, or "Stop Monitoring" to disconnect.

TECHNICAL OPERATION

Contract Deployment Alert for Site uses raw JSON-RPC calls via window.ethereum.request() to interact with the blockchain—no external library required for basic operations. It loads ethers at runtime using a simple script tag injection for ABI encoding and contract interactions. The tool gets the current block number and checks for new transactions since the last checked block using eth_getLogs. It filters for contract creation events (logs with contract address in the receipt) and checks each deployment against the user's criteria: matching monitored addresses (the deployer's address), factory addresses (contracts deployed by specific factory contracts), or bytecode patterns (checking the deployed bytecode via eth_getCode for matching patterns). When a match is found, it triggers a desktop notification and panel flash, and adds the deployment to the history list. The tool stores up to 50 recent deployments in GM_setValue for persistence.

THE PANEL

The Contract Deployment Alert for Site panel is fully draggable and remembers its position between sessions using GM_setValue. It snaps to the edge of the viewport for a clean interface and can be collapsed to a small icon when not in use. The panel is resizable to accommodate longer content. Press Escape to quickly close or collapse the panel. The design is optimized for productivity with a dark theme, clear visual hierarchy, and responsive controls that adapt to your workflow.

PLEASE NOTE

This tool requires the free BotGentz extension installed in your browser and a real EVM wallet extension (MetaMask, Rabby, etc.) already installed. EVM chains only—this does not work on non-EVM blockchains. The tool cannot detect contract deployments if the transaction is not yet confirmed, cannot read bytecode if the contract is self-destructed, cannot detect off-chain deployment events, and cannot monitor private mempool transactions. No private keys are stored or transmitted—all data is read-only from the blockchain. Always verify the addresses and patterns before starting monitoring.