Entrypoint Errors
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
-
Gas Limit Adjustment:
- Try increasing the
verificationGasLimit
for the user operation
- Try increasing the
-
For Bundler Provider Users:
- If using
eth_estimateUserOperationGas
(e.g., from JiffyLabs) and encountering this error, contact their support
- If using
-
Advanced Analysis:
- Investigate discrepancies between actual gas cost and prefund using tools like Tenderly