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 with the following fields:

from

string

The address the transaction is sent from

to

string

REQUIRED

The address 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

value

integer

The integer of the value sent with this transaction

data

string

The hash of the method signature and encoded parameters

blockReference

string

The block number in hexadecimal format, the block hash, or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators. safe and finalized are only supported on Ethereum, Gnosis, Arbitrum, Arbitrum Nova, and Avalanche C-chain

object

object

REQUIRED

The tracer object with the following fields:

tracer

string

The type of tracer. It could be callTracer or prestateTracer

callTracer

string

The calltracer keeps track of all call frames, including depth 0 calls, that are made during a transaction

prestateTracer

string

The prestateTracer replays the transaction and tracks every part of state that occured during the transaction

tracerConfig

object

The object to specify the configurations of the tracer

onlyTopCall

boolean

When set to true, this will only trace the primary (top-level) call and not any sub-calls. It eliminates the additional processing for each call frame

Returns

result

The transaction trace object, which has the following fields:

failed

The transaction is successful or not

gas

The total consumed gas in the transaction

returnValue

The return value of the executed contract call

structLogs

The trace result of each step with the following fields:

pc

The current index in bytecode

op

The name of current executing operation

gas

The available gas in the execution

gasCost

The gas cost of the operation

depth

The number of levels of calling functions

error

The error of the execution

stack

An array of values in the current stack

memory

An array of values in the current memory

storage

The mapping of the current storage

refund

The total of current refund value

Request

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

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

1
import { ethers } from "ethers";
2

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

18
main();

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.celo-mainnet.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "debug_traceCall",
7
    "params": [
8
        {
9
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
        },
12
        "latest",
13
        {
14
            "tracer": "callTracer"
15
        }
16
    ],
17
    "id": "1"
18
}
19

20
response = client.send(payload.to_json)
21
puts response

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.celo-mainnet.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "debug_traceCall",
7
    "params": [
8
        {
9
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
        },
12
        "latest",
13
        {
14
            "tracer": "callTracer"
15
        }
16
    ],
17
    "id": "1"
18
}
19

20
response = client.send(payload.to_json)
21
puts response

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.celo-mainnet.quiknode.pro/'))
3
response = w3.provider.make_request("debug_traceCall", [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.celo-mainnet.quiknode.pro/'))
3
response = w3.provider.make_request("debug_traceCall", [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}])
4
print(response)

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

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

8
    const result = await client.request({
9
        method: 'debug_traceCall',
10
        params: [
11
          {
12
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
          },
15
          "latest",
16
          {
17
            "tracer": "callTracer"
18
          }
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.celo-mainnet.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'debug_traceCall',
10
        params: [
11
          {
12
            "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
          },
15
          "latest",
16
          {
17
            "tracer": "callTracer"
18
          }
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
  'debug_traceCall',
7
  [
8
  {
9
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
  },
12
  "latest",
13
  {
14
    "tracer": "callTracer"
15
  }
16
],
17
  undefined,
18
  'https://docs-demo.celo-mainnet.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
  'debug_traceCall',
7
  [
8
  {
9
    "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
10
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
  },
12
  "latest",
13
  {
14
    "tracer": "callTracer"
15
  }
16
],
17
  undefined,
18
  'https://docs-demo.celo-mainnet.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
        "debug_traceCall",
8
        [
9
            {
10
                "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
11
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
            },
13
            "latest",
14
            {
15
                "tracer": "callTracer"
16
            }
17
        ],
18
        endpoint_url="https://docs-demo.celo-mainnet.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
        "debug_traceCall",
8
        [
9
            {
10
                "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
11
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
            },
13
            "latest",
14
            {
15
                "tracer": "callTracer"
16
            }
17
        ],
18
        endpoint_url="https://docs-demo.celo-mainnet.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: "debug_traceCall",
7
  params: [
8
    {
9
      "to" => "0x6b175474e89094c44da98b954eedeac495271d0f",
10
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
    },
12
    "latest",
13
    {
14
      "tracer" => "callTracer"
15
    }
16
  ],
17
  endpoint_url: "https://docs-demo.celo-mainnet.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: "debug_traceCall",
7
  params: [
8
    {
9
      "to" => "0x6b175474e89094c44da98b954eedeac495271d0f",
10
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
    },
12
    "latest",
13
    {
14
      "tracer" => "callTracer"
15
    }
16
  ],
17
  endpoint_url: "https://docs-demo.celo-mainnet.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
            "debug_traceCall",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest",
16
    {
17
        "tracer": "callTracer"
18
    }
19
])),
20
            None,
21
            Some("https://docs-demo.celo-mainnet.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
            "debug_traceCall",
10
            Some(serde_json::json!([
11
    {
12
        "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
13
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest",
16
    {
17
        "tracer": "callTracer"
18
    }
19
])),
20
            None,
21
            Some("https://docs-demo.celo-mainnet.quiknode.pro/".into()),
22
        )
23
        .await?;
24

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

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'debug_traceCall',
4
    params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.celo-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: 'debug_traceCall',
4
    params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}],
5
    id: 1
6
}
7

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

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceCall",
9
  "params": [
10
    {
11
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest",
15
    {
16
      "tracer": "callTracer"
17
    }
18
  ],
19
  "id": 1
20
})
21
headers = {
22
  'Content-Type': 'application/json'
23
}
24

25
response = requests.request("POST", url, headers=headers, data=payload)
26

27
print(response.text)

1
import requests
2
import json
3

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

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceCall",
9
  "params": [
10
    {
11
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest",
15
    {
16
      "tracer": "callTracer"
17
    }
18
  ],
19
  "id": 1
20
})
21
headers = {
22
  'Content-Type': 'application/json'
23
}
24

25
response = requests.request("POST", url, headers=headers, data=payload)
26

27
print(response.text)

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

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

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceCall",
11
  params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}]
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.celo-mainnet.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceCall",
11
  params: [{"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"tracer":"callTracer"}]
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
    "gas": 22080,
6
    "failed": false,
7
    "returnValue": "",
8
    "structLogs": []
9
  }
10
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "gas": 22080,
6
    "failed": false,
7
    "returnValue": "",
8
    "structLogs": []
9
  }
10
}

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