Lending Rate Alert

WHAT IT DOES

Lending Rate Alert watches the current page for lending market data, reads the current lending and borrowing rates directly from the protocol's smart contracts, monitors for rate changes in real time, and triggers an alert (desktop notification or flash) when the rate exceeds or falls below user-defined thresholds. It helps you stay on top of rate opportunities and risks without constantly refreshing DeFi dashboards.

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 lending protocols are deployed. The tool integrates seamlessly into your workflow, appearing as a draggable panel that stays accessible as you monitor DeFi markets.

HOW TO USE

Enter your lending market contract address in the "Market Setup" section. Configure your rate thresholds: set minimum and maximum percentages for both lending and borrowing rates. Set your refresh interval (how often to check rates) and toggle desktop notifications on or off. Click "Connect & Start Monitoring" to connect your real wallet extension, which will begin reading rates and alerting you when thresholds are crossed. Use "Refresh Now" for an immediate update, or "Stop Monitoring" to disconnect. The panel displays the current lending rate, borrowing rate, and any active alerts.

TECHNICAL OPERATION

Lending Rate Alert 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 attempts multiple common view function names (lendingRate, supplyRate, getLendingRate, borrowRate, getBorrowingRate) to fetch rates from the lending protocol. It compares the current rates against user-defined minimum and maximum thresholds and triggers alerts when thresholds are crossed. The tool uses setInterval for automatic refreshes based on the user-defined interval. When an alert is triggered, it sends a desktop notification via GM_notification and displays a flash message in the panel. The tool also tracks rate changes and displays the last updated time.

THE PANEL

The Lending Rate Alert 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 read rates if the contract does not expose the required view functions, cannot detect off-chain rate data from centralized oracles, and cannot predict future rate changes. No private keys are stored or transmitted—all data is read-only from the blockchain. Always verify the market contract address before starting monitoring.