eth_estimateGas - World Chain RPC Method
Estimate gas required for transactions on World Chain. Essential for optimizing transaction costs for human-verified DeFi, identity-gated applications, bot-resistant services.
Estimates the gas necessary to execute a transaction on World Chain.
Why World Chain? Build on the human-first Ethereum L2 powered by World ID with World ID integration for free gas and priority blockspace.
Use Cases
The eth_estimateGas method is essential for:
- Transaction preparation - Set appropriate gas limits
- Cost estimation - Calculate transaction costs before sending
- Error detection - Identify reverts before spending gas
- DeFi operations - Estimate costs for human-verified DeFi, identity-gated applications, bot-resistant services
Code Examples
Error Handling
| Error Code | Message | Description |
|---|---|---|
| -32000 | Execution reverted | Transaction would fail |
| -32602 | Invalid params | Invalid transaction parameters |
Tip: If estimation fails, the transaction would likely revert if sent.
Related Methods
eth_gasPrice- Get current gas priceeth_sendRawTransaction- Send transaction
eth_getTransactionReceipt
Get transaction receipt with status and logs on World Chain. Essential for verifying transaction execution for human-verified DeFi, identity-gated applications, bot-resistant services.
eth_gasPrice
Get current gas price on World Chain. Essential for transaction cost estimation for human-verified DeFi, identity-gated applications, bot-resistant services.