eth_estimateGas

Flashblocks: Query https://mainnet.base.org with "pending" to estimate gas against the current pre-confirmed state, useful when a transaction depends on a prior pre-confirmed one.

Parameters

object

required

The transaction object to estimate gas for.

Show Transaction fields

string

Address the transaction is sent from. Optional.

string

Address the transaction is sent to. Optional for contract deployments.

string

Gas limit. Optional; a high default is used if omitted.

string

Gas price in wei for legacy transactions. Optional.

string

EIP-1559 maximum total fee per gas. Optional.

string

EIP-1559 maximum priority fee per gas. Optional.

string

Value to transfer in wei. Optional.

string

ABI-encoded call data. Optional.

string

Block to estimate against. Optional; defaults to "latest". Use "pending" to estimate against pre-confirmed state.

Code	Message	Description
`-32000`	execution reverted	The transaction would revert. The error `data` field may contain a revert reason.

Code

Message

Description

-32000

execution reverted

The transaction would revert. The error data field may contain a revert reason.

Example

curl https://mainnet.base.org \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [{
      "from": "0xd3CdA913deB6f4967b2Ef66ae97DE114a83bcc01",
      "to": "0x4200000000000000000000000000000000000006",
      "value": "0x2c68af0bb14000"
    }],
    "id": 1
  }'

curl https://mainnet.base.org \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [{
      "from": "0xd3CdA913deB6f4967b2Ef66ae97DE114a83bcc01",
      "to": "0x4200000000000000000000000000000000000006",
      "value": "0x2c68af0bb14000"
    }, "pending"],
    "id": 1
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x5208"
}

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Parameters

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Error Codes

Example