Recurring Contract Call Scheduler

WHAT IT DOES

The Recurring Contract Call Scheduler enables developers and power users to create automated, recurring contract function calls on EVM-compatible blockchains. It interacts with scheduler contracts to set up regular invocations of target contract functions with encoded parameters and specified frequencies. The tool reads existing schedules including target contract addresses, call data, execution frequencies, next execution timestamps, and active status. It supports creating new schedules with configurable start delays, loading and viewing existing schedule details, and canceling active schedules.

The tool automatically detects the appropriate schedule creation function (createSchedule, addRecurringCall, or scheduleRecurring) by testing contract interfaces, making it compatible with various scheduler contract implementations. Each schedule is tracked with a unique ID, allowing users to manage multiple recurring calls across different target contracts and functions.

HOW TO USE

1. Connect your wallet using the Connect button. The tool automatically detects your connected address and network.

2. Select the network where your scheduler contract is deployed using the network dropdown.

3. Enter the scheduler contract address and the target contract address (the contract you want to call).

4. Specify the function signature (e.g., "transfer(address,uint256)") and encode the call data in hex format (starting with 0x).

5. Set the execution frequency in seconds (e.g., 86400 for daily, 3600 for hourly).

6. Optionally set a start delay in seconds to postpone the first execution.

7. Click "Create recurring schedule" to submit the transaction through your wallet.

8. To manage existing schedules, enter a schedule ID and click "Load existing schedule" to view details.

9. Use the "Cancel schedule" button to deactivate a schedule (if supported by the contract).

10. Review schedule details in the preview panel including target contract, function, frequency, next execution time, and status.

TECHNICAL MECHANISM

The executor dynamically discovers the correct schedule creation function by attempting multiple common ABI variants (createSchedule, addRecurringCall, scheduleRecurring) and performing gas estimation to verify the function exists. When creating a schedule, the tool encodes the target address, call data, frequency, and start delay as parameters to the scheduler contract. The scheduler contract then manages the schedule's lifecycle, storing the target, call data, interval, and next execution timestamp. The tool reads schedule state via the schedules view function, which returns the target address, call data bytes, frequency, next execution timestamp, active status, and caller address. For contracts that support it, the scheduleCount view function shows total active schedules. The execution history tracks all schedule creation and cancellation transactions with timestamps and success status.

WHAT IT CANNOT SEE

This tool cannot verify that the target contract has not been upgraded or modified after the schedule was created. It cannot ensure that scheduled calls will execute at the exact intended times due to network congestion, gas price fluctuations, or block timing variability. It cannot detect if the target contract contains malicious logic, hidden functions, or has been compromised. It cannot recover funds or retry if execution fails due to contract bugs, out-of-gas errors, or invalid function signatures. It cannot verify that the function signature and parameters are correctly encoded for the target contract's ABI. It cannot guarantee execution during extreme network volatility, high gas prices, or chain reorganizations. It cannot ensure the scheduler contract itself has not been modified or upgraded. It cannot detect if the call data has been tampered with or front-run by malicious actors. It cannot validate that the target contract is safe to interact with or that the function call is appropriate for the current contract state. It cannot prevent other users from interacting with or influencing the scheduled calls through other interfaces.

PLEASE NOTE

This tool is designed for EVM-compatible blockchains only (Ethereum, Polygon, Arbitrum, Optimism, Base, BSC, Avalanche, Fantom, Linea, Scroll). It requires an active wallet connection and sufficient native currency for gas fees. Always verify your scheduler contract address, target contract address, and call data before creating schedules. The tool attempts multiple ABI variants but may not support all scheduler contract implementations - verify your contract's functions match the expected interfaces. Be extremely cautious when creating recurring calls - incorrect parameters could cause unexpected behavior or loss of funds. The tool is provided as-is with no warranty; users assume full responsibility for their automated transactions and should exercise caution when scheduling contract interactions. For mainnet usage, ensure both your scheduler and target contracts have been audited and you understand the risks of automated contract calls, including gas costs, execution failures, and potential security implications.