Parameters

object

object

The transaction call object which contains the following fields:

from

string

The address from which the transaction is sent

to

string

REQUIRED

The address to which the transaction is addressed

gas

string

The integer of gas provided for the transaction execution

gasPrice

string

The integer of gasPrice used for each paid gas encoded as hexadecimal

value

string

The integer of value sent with this transaction encoded as hexadecimal

data

string

The hash of the method signature and encoded parameters

blockNumber/tag

string

REQUIRED

The block number in hexadecimal format or the string latest, earliest, pending, safe or finalized (safe and finalized tags are only supported on Ethereum, Gnosis, Arbitrum, Arbitrum Nova and Avalanche C-chain), see the default block parameter description in the official Ethereum documentation

Returns

quantity

The expected execution gas cost of a transaction. This does not include any information about the cost to publish the transaction data to Layer 1

Request

1
curl -X POST "https://docs-demo.optimism.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_estimateExecutionGas",
6
  "params": [
7
    {
8
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
9
      "gas": "0x7a120",
10
      "gasPrice": "0x0",
11
      "value": "0x0",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest"
15
  ],
16
  "id": 1
17
}'

1
curl -X POST "https://docs-demo.optimism.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "eth_estimateExecutionGas",
6
  "params": [
7
    {
8
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
9
      "gas": "0x7a120",
10
      "gasPrice": "0x0",
11
      "value": "0x0",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest"
15
  ],
16
  "id": 1
17
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.optimism.quiknode.pro/");
5
    const response = await provider.send("eth_estimateExecutionGas", [
6
    {
7
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
8
        "gas": "0x7a120",
9
        "gasPrice": "0x0",
10
        "value": "0x0",
11
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
    },
13
    "latest"
14
]);
15
    console.log(response);
16
}
17

18
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.optimism.quiknode.pro/");
5
    const response = await provider.send("eth_estimateExecutionGas", [
6
    {
7
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
8
        "gas": "0x7a120",
9
        "gasPrice": "0x0",
10
        "value": "0x0",
11
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
    },
13
    "latest"
14
]);
15
    console.log(response);
16
}
17

18
main();

1
import json
2
from web3 import Web3, HTTPProvider
3
w3 = Web3(HTTPProvider('https://docs-demo.optimism.quiknode.pro/'))
4
response = w3.provider.make_request("eth_estimateExecutionGas", [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"])
5
print(response)

1
import json
2
from web3 import Web3, HTTPProvider
3
w3 = Web3(HTTPProvider('https://docs-demo.optimism.quiknode.pro/'))
4
response = w3.provider.make_request("eth_estimateExecutionGas", [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"])
5
print(response)

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.optimism.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_estimateExecutionGas',
10
        params: [
11
          {
12
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
            "gas": "0x7a120",
14
            "gasPrice": "0x0",
15
            "value": "0x0",
16
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
17
          },
18
          "latest"
19
        ]
20
    })
21

22
    console.log(result)
23
}
24

25
main()

1
import { createPublicClient, http } from 'viem'
2

3
async function main() {
4
    const client = createPublicClient({
5
        transport: http('https://docs-demo.optimism.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'eth_estimateExecutionGas',
10
        params: [
11
          {
12
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
            "gas": "0x7a120",
14
            "gasPrice": "0x0",
15
            "value": "0x0",
16
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
17
          },
18
          "latest"
19
        ]
20
    })
21

22
    console.log(result)
23
}
24

25
main()

1
import { QuicknodeSdk } from '@quicknode/sdk'
2

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'eth_estimateExecutionGas',
7
  [
8
  {
9
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
    "gas": "0x7a120",
11
    "gasPrice": "0x0",
12
    "value": "0x0",
13
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
  },
15
  "latest"
16
],
17
  undefined,
18
  'https://docs-demo.optimism.quiknode.pro/'
19
)
20

21
console.log(result)

1
import { QuicknodeSdk } from '@quicknode/sdk'
2

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'eth_estimateExecutionGas',
7
  [
8
  {
9
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
    "gas": "0x7a120",
11
    "gasPrice": "0x0",
12
    "value": "0x0",
13
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
  },
15
  "latest"
16
],
17
  undefined,
18
  'https://docs-demo.optimism.quiknode.pro/'
19
)
20

21
console.log(result)

1
import asyncio
2
from quicknode_sdk import QuicknodeSdk, SdkFullConfig
3

4
async def main():
5
    qn = QuicknodeSdk(SdkFullConfig(api_key=None))
6
    result = await qn.rpc.call(
7
        "eth_estimateExecutionGas",
8
        [
9
            {
10
                "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
11
                "gas": "0x7a120",
12
                "gasPrice": "0x0",
13
                "value": "0x0",
14
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
15
            },
16
            "latest"
17
        ],
18
        endpoint_url="https://docs-demo.optimism.quiknode.pro/",
19
    )
20
    print(result)
21

22
asyncio.run(main())

1
import asyncio
2
from quicknode_sdk import QuicknodeSdk, SdkFullConfig
3

4
async def main():
5
    qn = QuicknodeSdk(SdkFullConfig(api_key=None))
6
    result = await qn.rpc.call(
7
        "eth_estimateExecutionGas",
8
        [
9
            {
10
                "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
11
                "gas": "0x7a120",
12
                "gasPrice": "0x0",
13
                "value": "0x0",
14
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
15
            },
16
            "latest"
17
        ],
18
        endpoint_url="https://docs-demo.optimism.quiknode.pro/",
19
    )
20
    print(result)
21

22
asyncio.run(main())

1
require "quicknode_sdk"
2

3
qn = QuicknodeSdk::SDK.from_config(api_key: nil)
4

5
result = qn.rpc.call(
6
  method: "eth_estimateExecutionGas",
7
  params: [
8
    {
9
      "to" => "0x6b175474e89094c44da98b954eedeac495271d0f",
10
      "gas" => "0x7a120",
11
      "gasPrice" => "0x0",
12
      "value" => "0x0",
13
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest"
16
  ],
17
  endpoint_url: "https://docs-demo.optimism.quiknode.pro/"
18
)
19

20
puts result

1
require "quicknode_sdk"
2

3
qn = QuicknodeSdk::SDK.from_config(api_key: nil)
4

5
result = qn.rpc.call(
6
  method: "eth_estimateExecutionGas",
7
  params: [
8
    {
9
      "to" => "0x6b175474e89094c44da98b954eedeac495271d0f",
10
      "gas" => "0x7a120",
11
      "gasPrice" => "0x0",
12
      "value" => "0x0",
13
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest"
16
  ],
17
  endpoint_url: "https://docs-demo.optimism.quiknode.pro/"
18
)
19

20
puts result

1
use quicknode_sdk::{QuicknodeSdk, SdkFullConfig};
2

3
#[tokio::main]
4
async fn main() -> Result<(), Box<dyn std::error::Error>> {
5
    let qn = QuicknodeSdk::new(&SdkFullConfig::keyless())?;
6
    let result = qn
7
        .rpc
8
        .call(
9
            "eth_estimateExecutionGas",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
        "gas": "0x7a120",
14
        "gasPrice": "0x0",
15
        "value": "0x0",
16
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
17
    },
18
    "latest"
19
])),
20
            None,
21
            Some("https://docs-demo.optimism.quiknode.pro/".into()),
22
        )
23
        .await?;
24

25
    println!("{result}");
26
    Ok(())
27
}

1
use quicknode_sdk::{QuicknodeSdk, SdkFullConfig};
2

3
#[tokio::main]
4
async fn main() -> Result<(), Box<dyn std::error::Error>> {
5
    let qn = QuicknodeSdk::new(&SdkFullConfig::keyless())?;
6
    let result = qn
7
        .rpc
8
        .call(
9
            "eth_estimateExecutionGas",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
        "gas": "0x7a120",
14
        "gasPrice": "0x0",
15
        "value": "0x0",
16
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
17
    },
18
    "latest"
19
])),
20
            None,
21
            Some("https://docs-demo.optimism.quiknode.pro/".into()),
22
        )
23
        .await?;
24

25
    println!("{result}");
26
    Ok(())
27
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_estimateExecutionGas',
4
    params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.optimism.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'eth_estimateExecutionGas',
4
    params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.optimism.quiknode.pro/', {
10
        method: 'POST',
11
        headers: {'Content-Type': 'application/json'},
12
        body: JSON.stringify(body)
13
    })
14
    const data = await response.json()
15
    console.log(data)
16
}
17

18
main()

1
import requests
2
import json
3

4
url = "https://docs-demo.optimism.quiknode.pro/"
5

6
payload = json.dumps(json.loads("{\"jsonrpc\":\"2.0\",\"method\":\"eth_estimateExecutionGas\",\"params\":[{\"to\":\"0x6b175474e89094c44da98b954eedeac495271d0f\",\"gas\":\"0x7a120\",\"gasPrice\":\"0x0\",\"value\":\"0x0\",\"data\":\"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE\"},\"latest\"],\"id\":1}"))
7
headers = {
8
  'Content-Type': 'application/json'
9
}
10

11
response = requests.request("POST", url, headers=headers, data=payload)
12

13
print(response.text)

1
import requests
2
import json
3

4
url = "https://docs-demo.optimism.quiknode.pro/"
5

6
payload = json.dumps(json.loads("{\"jsonrpc\":\"2.0\",\"method\":\"eth_estimateExecutionGas\",\"params\":[{\"to\":\"0x6b175474e89094c44da98b954eedeac495271d0f\",\"gas\":\"0x7a120\",\"gasPrice\":\"0x0\",\"value\":\"0x0\",\"data\":\"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE\"},\"latest\"],\"id\":1}"))
7
headers = {
8
  'Content-Type': 'application/json'
9
}
10

11
response = requests.request("POST", url, headers=headers, data=payload)
12

13
print(response.text)

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.optimism.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_estimateExecutionGas",
11
  params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"]
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.optimism.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "eth_estimateExecutionGas",
11
  params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","gas":"0x7a120","gasPrice":"0x0","value":"0x0","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest"]
12
}
13

14
request = Net::HTTP::Post.new(uri)
15
request["Content-Type"] = "application/json"
16
request.body = JSON.generate(payload)
17

18
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
19
  http.request(request)
20
end
21

22
puts response.body

Response

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": "0x5208"
5
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": "0x5208"
5
}

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