AA51: Insufficient Prefund

Resolving cases where actual gas cost exceeds prefunded amount

The actual gas cost of the user operation exceeded the prefund provided by the smart account or paymaster.

Resolution Checklist

1. Gas Limit Adjustment:

   • Try increasing the verificationGasLimit for the user operation

2. For Bundler Provider Users:

   • If using eth_estimateUserOperationGas (e.g., from JiffyLabs) and encountering this error, contact their support

3. Advanced Analysis:

   • Investigate discrepancies between actual gas cost and prefund using tools like Tenderly