Price Feed Update Trigger

WHAT IT DOES

Price Feed Update Trigger is a non-custodial tool that triggers price feed updates by pushing fresh price data on-chain, ensuring price feeds remain current and accurate for consuming smart contracts. It reads price feed contract state, user address, token balances, feed parameters, feed ID, current price, timestamp, update threshold, heartbeat interval, price deviation threshold, update eligibility, user's update history, feed status, last update time, minimum update interval, and data source state to structure the optimal update operation. With a single transaction, it calls updatePriceFeed(), triggerFeedUpdate(), or executePriceUpdate() on the target contract, submitting a new price value with timestamp. The tool ensures updates meet deviation thresholds and heartbeat requirements, maintaining the integrity and timeliness of price data.

HOW TO USE

1. Connect your wallet (EVM-compatible).

2. Paste the price feed contract address.

3. Enter the feed ID and new price value.

4. Optionally provide a timestamp (leave blank for current block time).

5. Review the current price, deviation threshold, last update time, and update eligibility.

6. Click "trigger price update" and confirm the transaction in your wallet.

The tool checks update eligibility, deviation threshold, and heartbeat interval before execution to prevent failed transactions. After the transaction confirms, the price feed is updated on-chain—no centralized custody, no intermediaries. The new price is now available for consuming smart contracts.

TECHNICAL MECHANISM: MULTI-FUNCTION FALLBACK WITH ELIGIBILITY VERIFICATION

Unlike simple transaction builders that assume a single function signature, this tool implements a multi-function fallback strategy. It first attempts updatePriceFeed(), then falls back to triggerFeedUpdate() or executePriceUpdate() if the primary method fails—automatically adapting to different contract implementations without requiring the user to know the exact function name. For all on-chain reads, it uses chunked block range scanning that halves on failure, preventing the common "eth_getLogs limit exceeded" error that halts most scanners on public RPCs. It double-verifies update eligibility by checking both the current price deviation from storage and the last update time, rather than relying on historical events—because an event log proves previous updates were made, not that the current update can be accepted. Gas estimation uses receipt.effectiveGasPrice for accurate post-EIP-1559 cost accounting, and all batched operations are sequential with concurrency caps to avoid nonce conflicts. The tool also validates that the new price value is within acceptable ranges and that the timestamp is valid before execution.

WHAT IT CANNOT SEE

This tool cannot verify that the price data is accurate or reliable. It cannot detect if the data has been manipulated. It cannot ensure that update will execute at the optimal gas price due to network conditions. It cannot guarantee that update will succeed if the price feed contract is paused or frozen. It cannot verify that the contract has not been upgraded or modified. It cannot detect if the trade path is optimal or not front-run. It cannot recover funds if execution fails due to contract bugs or insufficient approval. It cannot verify that the price value is correct or not. It cannot predict market movements, price gaps, or flash crashes. It cannot guarantee execution during extreme network congestion or volatile market conditions. It cannot detect if the underlying data source has been compromised. It cannot prevent the user from canceling or modifying update parameters. It cannot ensure that the update will meet the deviation threshold. It cannot protect against loss if update is rejected. It cannot guarantee that the feed will be updated within the heartbeat interval. It cannot ensure that the new price will be used by consuming contracts. It cannot verify that the update threshold has been met.

PLEASE NOTE

This tool operates only on EVM-compatible chains (Ethereum Mainnet, Polygon, Arbitrum, Optimism, etc.). It is non-custodial—you retain full control of your funds at all times. Always verify contract addresses, feed IDs, and price parameters before executing. Price updates must meet deviation thresholds to be accepted—submitting stale or non-compliant updates may be rejected. The tool is provided as-is; use at your own risk.