This RPC method is included in the Free Trial with limited usage. Upgrade your plan to get full access and higher limits. Learn more on our pricing page.

Parameters

object

object

The transaction call object which contains the following fields:

from

string

The string of the address the transaction is sent from

to

string

REQUIRED

The string of the address to the transaction is directed to

gas

integer

The integer of the gas provided for the transaction execution

gasPrice

integer

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

value

integer

The integer of the value sent with this transaction encoded as hexadecimal

data

string

The string of the hash of the method signature and encoded parameters, see the Ethereum Contract ABI

array

array

REQUIRED

The type of trace, which can be one of the following:

vmTrace

string

To get a full trace of the virtual machine's state during the execution of the given transaction, including for any subcalls

trace

string

To get the basic trace of the given transaction

stateDiff

string

To get information on the state altered by the execution of the given transaction

blockNumber

string

The block number as a string in hexadecimal format or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, and pending for the pending state/transactions

Returns

object

object

The result of the traced call, which has the following fields (please note that all return types are hexadecimal representations of their data type unless otherwise stated):

output

string

The data which is returned as an output encoded in hexadecimal format

stateDiff

object

The state altered by the execution of the call, keyed by account address, and it is null when the stateDiff tracer is not requested

trace

array

The basic traces of the call:

action

object

The action to be performed on the receiver id:

callType

string

The type of method such as call or delegatecall

from

string

The address of the sender

gas

string

The gas provided by the sender, encoded as hexadecimal

input

string

The data sent along with the call

to

string

The address of the receiver

value

string

The integer of the value sent with this call, encoded as hexadecimal

blockHash

string

The hash of the block in which the call was simulated

blockNumber

integer

The number of the block in which the call was simulated (stated in decimal)

result

object

The result of the call:

gasUsed

string

The amount of gas used by this call alone

output

string

The value returned by the contract call, and it only contains the actual value sent by the RETURN method. If the RETURN method was not executed, the output is empty bytes

subtraces

integer

The number of contract calls made by this call

traceAddress

array

The list of addresses where the call executed, the address of the parents and the order of the current sub call

transactionHash

string

The hash of the simulated transaction the trace belongs to

transactionPosition

integer

The position of the simulated transaction in the block (stated in decimal)

type

string

The value of the method such as call or create

vmTrace

object

The full trace of the virtual machine's state during the execution of the call, including for any sub-calls, and it is null when the vmTrace tracer is not requested

Request

1
curl -X POST "https://docs-demo.sonic-mainnet.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "trace_call",
6
  "params": [
7
    {
8
      "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
9
      "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
10
    },
11
    [
12
      "trace",
13
      "stateDiff"
14
    ],
15
    "latest"
16
  ],
17
  "id": 1
18
}'

1
curl -X POST "https://docs-demo.sonic-mainnet.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "trace_call",
6
  "params": [
7
    {
8
      "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
9
      "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
10
    },
11
    [
12
      "trace",
13
      "stateDiff"
14
    ],
15
    "latest"
16
  ],
17
  "id": 1
18
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.sonic-mainnet.quiknode.pro/");
5
    const response = await provider.send("trace_call", [
6
    {
7
        "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
8
        "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
9
    },
10
    [
11
        "trace",
12
        "stateDiff"
13
    ],
14
    "latest"
15
]);
16
    console.log(response);
17
}
18

19
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.sonic-mainnet.quiknode.pro/");
5
    const response = await provider.send("trace_call", [
6
    {
7
        "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
8
        "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
9
    },
10
    [
11
        "trace",
12
        "stateDiff"
13
    ],
14
    "latest"
15
]);
16
    console.log(response);
17
}
18

19
main();

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.sonic-mainnet.quiknode.pro/'))
3
response = w3.provider.make_request("trace_call", [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"latest"])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.sonic-mainnet.quiknode.pro/'))
3
response = w3.provider.make_request("trace_call", [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"latest"])
4
print(response)

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

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

8
    const result = await client.request({
9
        method: 'trace_call',
10
        params: [
11
          {
12
            "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
13
            "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
14
          },
15
          [
16
            "trace",
17
            "stateDiff"
18
          ],
19
          "latest"
20
        ]
21
    })
22

23
    console.log(result)
24
}
25

26
main()

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

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

8
    const result = await client.request({
9
        method: 'trace_call',
10
        params: [
11
          {
12
            "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
13
            "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
14
          },
15
          [
16
            "trace",
17
            "stateDiff"
18
          ],
19
          "latest"
20
        ]
21
    })
22

23
    console.log(result)
24
}
25

26
main()

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

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'trace_call',
7
  [
8
  {
9
    "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
10
    "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
11
  },
12
  [
13
    "trace",
14
    "stateDiff"
15
  ],
16
  "latest"
17
],
18
  undefined,
19
  'https://docs-demo.sonic-mainnet.quiknode.pro/'
20
)
21

22
console.log(result)

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

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'trace_call',
7
  [
8
  {
9
    "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
10
    "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
11
  },
12
  [
13
    "trace",
14
    "stateDiff"
15
  ],
16
  "latest"
17
],
18
  undefined,
19
  'https://docs-demo.sonic-mainnet.quiknode.pro/'
20
)
21

22
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
        "trace_call",
8
        [
9
            {
10
                "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
11
                "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
12
            },
13
            [
14
                "trace",
15
                "stateDiff"
16
            ],
17
            "latest"
18
        ],
19
        endpoint_url="https://docs-demo.sonic-mainnet.quiknode.pro/",
20
    )
21
    print(result)
22

23
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
        "trace_call",
8
        [
9
            {
10
                "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
11
                "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
12
            },
13
            [
14
                "trace",
15
                "stateDiff"
16
            ],
17
            "latest"
18
        ],
19
        endpoint_url="https://docs-demo.sonic-mainnet.quiknode.pro/",
20
    )
21
    print(result)
22

23
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: "trace_call",
7
  params: [
8
    {
9
      "to" => "0x29219dd400f2bf60e5a23d13be72b486d4038894",
10
      "data" => "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
11
    },
12
    [
13
      "trace",
14
      "stateDiff"
15
    ],
16
    "latest"
17
  ],
18
  endpoint_url: "https://docs-demo.sonic-mainnet.quiknode.pro/"
19
)
20

21
puts result

1
require "quicknode_sdk"
2

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

5
result = qn.rpc.call(
6
  method: "trace_call",
7
  params: [
8
    {
9
      "to" => "0x29219dd400f2bf60e5a23d13be72b486d4038894",
10
      "data" => "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
11
    },
12
    [
13
      "trace",
14
      "stateDiff"
15
    ],
16
    "latest"
17
  ],
18
  endpoint_url: "https://docs-demo.sonic-mainnet.quiknode.pro/"
19
)
20

21
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
            "trace_call",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
13
        "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
14
    },
15
    [
16
        "trace",
17
        "stateDiff"
18
    ],
19
    "latest"
20
])),
21
            None,
22
            Some("https://docs-demo.sonic-mainnet.quiknode.pro/".into()),
23
        )
24
        .await?;
25

26
    println!("{result}");
27
    Ok(())
28
}

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
            "trace_call",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
13
        "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
14
    },
15
    [
16
        "trace",
17
        "stateDiff"
18
    ],
19
    "latest"
20
])),
21
            None,
22
            Some("https://docs-demo.sonic-mainnet.quiknode.pro/".into()),
23
        )
24
        .await?;
25

26
    println!("{result}");
27
    Ok(())
28
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'trace_call',
4
    params: [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"latest"],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.sonic-mainnet.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: 'trace_call',
4
    params: [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"latest"],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.sonic-mainnet.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.sonic-mainnet.quiknode.pro/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "trace_call",
9
  "params": [
10
    {
11
      "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
12
      "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
13
    },
14
    [
15
      "trace",
16
      "stateDiff"
17
    ],
18
    "latest"
19
  ],
20
  "id": 1
21
})
22
headers = {
23
  'Content-Type': 'application/json'
24
}
25

26
response = requests.request("POST", url, headers=headers, data=payload)
27

28
print(response.text)

1
import requests
2
import json
3

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

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "trace_call",
9
  "params": [
10
    {
11
      "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
12
      "data": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
13
    },
14
    [
15
      "trace",
16
      "stateDiff"
17
    ],
18
    "latest"
19
  ],
20
  "id": 1
21
})
22
headers = {
23
  'Content-Type': 'application/json'
24
}
25

26
response = requests.request("POST", url, headers=headers, data=payload)
27

28
print(response.text)

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

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

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "trace_call",
11
  params: [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"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.sonic-mainnet.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "trace_call",
11
  params: [{"to":"0x29219dd400f2bf60e5a23d13be72b486d4038894","data":"0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"},["trace","stateDiff"],"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": {
5
    "output": "0x000000000000000000000000000000000000000000000000000000061e37f9c5",
6
    "stateDiff": {
7
      "0x0000000000000000000000000000000000000000": {
8
        "balance": "=",
9
        "code": "=",
10
        "nonce": {
11
          "*": {
12
            "from": "0x2b2c0",
13
            "to": "0x2b2c1"
14
          }
15
        },
16
        "storage": {}
17
      }
18
    },
19
    "trace": [
20
      {
21
        "action": {
22
          "callType": "call",
23
          "from": "0x0000000000000000000000000000000000000000",
24
          "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
25
          "value": "0x0",
26
          "gas": "0x23c2f248",
27
          "input": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
28
        },
29
        "blockHash": "0xacd99fe00769c38069e03e536d8094e80a7ccdaa73777ef2a53ab8be9e274a72",
30
        "blockNumber": 76639224,
31
        "result": {
32
          "gasUsed": "0x79ce",
33
          "output": "0x000000000000000000000000000000000000000000000000000000061e37f9c5"
34
        },
35
        "subtraces": 1,
36
        "traceAddress": [],
37
        "transactionHash": "0x677e3067c5b001144d88fe9f44f98ba8d265182d949b68fa68755710949a7c63",
38
        "transactionPosition": 0,
39
        "type": "call"
40
      },
41
      {
42
        "action": {
43
          "callType": "delegatecall",
44
          "from": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
45
          "to": "0x229e64252e2901a424600e22c28a722404d92dcc",
46
          "value": "0x0",
47
          "gas": "0x2333cafb",
48
          "input": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
49
        },
50
        "blockHash": "0xacd99fe00769c38069e03e536d8094e80a7ccdaa73777ef2a53ab8be9e274a72",
51
        "blockNumber": 76639224,
52
        "result": {
53
          "gasUsed": "0x9f9",
54
          "output": "0x000000000000000000000000000000000000000000000000000000061e37f9c5"
55
        },
56
        "subtraces": 0,
57
        "traceAddress": [
58
          0
59
        ],
60
        "transactionHash": "0x677e3067c5b001144d88fe9f44f98ba8d265182d949b68fa68755710949a7c63",
61
        "transactionPosition": 0,
62
        "type": "call"
63
      }
64
    ],
65
    "vmTrace": null
66
  }
67
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "output": "0x000000000000000000000000000000000000000000000000000000061e37f9c5",
6
    "stateDiff": {
7
      "0x0000000000000000000000000000000000000000": {
8
        "balance": "=",
9
        "code": "=",
10
        "nonce": {
11
          "*": {
12
            "from": "0x2b2c0",
13
            "to": "0x2b2c1"
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        "storage": {}
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      }
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    },
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    "trace": [
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      {
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        "action": {
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          "callType": "call",
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          "to": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
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          "input": "0x70a08231000000000000000000000000324963c267c354c7660ce8ca3f5f167e05649970"
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        "blockHash": "0xacd99fe00769c38069e03e536d8094e80a7ccdaa73777ef2a53ab8be9e274a72",
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        "blockNumber": 76639224,
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        "result": {
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          "gasUsed": "0x79ce",
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        "traceAddress": [],
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        "blockHash": "0xacd99fe00769c38069e03e536d8094e80a7ccdaa73777ef2a53ab8be9e274a72",
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    "vmTrace": null
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}

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