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.

To use the debug_traceTransaction method on the C-Chain, ensure that the end of your URL includes ext/bc/C/rpc.

Parameters

transactionHash

string

The transaction hash that needs to be traced, encoded in hexadecimal format

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

timeout

string

A string of decimal integers that overrides the JavaScript-based tracing calls default timeout of 5 seconds.

Returns

result

object

The result object containing transaction trace details

type

string

The type of transaction, e.g., 'CALL'

from

string

The address initiating the transaction

to

string

The address receiving the transaction

gas

string

The gas provided for the transaction in hexadecimal

gasUsed

string

The gas used during transaction execution in hexadecimal

value

string

The value transferred in the transaction in hexadecimal

output

string

The transaction output data in hexadecimal, when present

input

string

The transaction input data in hexadecimal

calls

array

Nested calls made during the transaction, when present

type

string

The type of nested call

from

string

The address initiating the nested call

to

string

The address receiving the nested call

gas

string

The gas provided for the nested call in hexadecimal

gasUsed

string

The gas used during nested call execution in hexadecimal

value

string

The value transferred in the nested call in hexadecimal

output

string

The output data of the nested call in hexadecimal

input

string

The input data of the nested call in hexadecimal

calls

array

Further nested calls within the current call

Request

1
curl -X POST "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "debug_traceTransaction",
6
  "params": [
7
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
8
    {
9
      "tracer": "callTracer",
10
      "tracerConfig": {
11
        "onlyTopCall": false
12
      }
13
    }
14
  ],
15
  "id": 1
16
}'

1
curl -X POST "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "debug_traceTransaction",
6
  "params": [
7
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
8
    {
9
      "tracer": "callTracer",
10
      "tracerConfig": {
11
        "onlyTopCall": false
12
      }
13
    }
14
  ],
15
  "id": 1
16
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/");
5
    const response = await provider.send("debug_traceTransaction", [
6
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
7
    {
8
        "tracer": "callTracer",
9
        "tracerConfig": {
10
            "onlyTopCall": false
11
        }
12
    }
13
]);
14
    console.log(response);
15
}
16

17
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/");
5
    const response = await provider.send("debug_traceTransaction", [
6
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
7
    {
8
        "tracer": "callTracer",
9
        "tracerConfig": {
10
            "onlyTopCall": false
11
        }
12
    }
13
]);
14
    console.log(response);
15
}
16

17
main();

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'))
3
response = w3.provider.make_request("debug_traceTransaction", ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":False}}])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'))
3
response = w3.provider.make_request("debug_traceTransaction", ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":False}}])
4
print(response)

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

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

8
    const result = await client.request({
9
        method: 'debug_traceTransaction',
10
        params: [
11
          "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
12
          {
13
            "tracer": "callTracer",
14
            "tracerConfig": {
15
              "onlyTopCall": false
16
            }
17
          }
18
        ]
19
    })
20

21
    console.log(result)
22
}
23

24
main()

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

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

8
    const result = await client.request({
9
        method: 'debug_traceTransaction',
10
        params: [
11
          "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
12
          {
13
            "tracer": "callTracer",
14
            "tracerConfig": {
15
              "onlyTopCall": false
16
            }
17
          }
18
        ]
19
    })
20

21
    console.log(result)
22
}
23

24
main()

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

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'debug_traceTransaction',
7
  [
8
  "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
9
  {
10
    "tracer": "callTracer",
11
    "tracerConfig": {
12
      "onlyTopCall": false
13
    }
14
  }
15
],
16
  undefined,
17
  'https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'
18
)
19

20
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_traceTransaction',
7
  [
8
  "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
9
  {
10
    "tracer": "callTracer",
11
    "tracerConfig": {
12
      "onlyTopCall": false
13
    }
14
  }
15
],
16
  undefined,
17
  'https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'
18
)
19

20
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_traceTransaction",
8
        [
9
            "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
10
            {
11
                "tracer": "callTracer",
12
                "tracerConfig": {
13
                    "onlyTopCall": False
14
                }
15
            }
16
        ],
17
        endpoint_url="https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/",
18
    )
19
    print(result)
20

21
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_traceTransaction",
8
        [
9
            "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
10
            {
11
                "tracer": "callTracer",
12
                "tracerConfig": {
13
                    "onlyTopCall": False
14
                }
15
            }
16
        ],
17
        endpoint_url="https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/",
18
    )
19
    print(result)
20

21
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_traceTransaction",
7
  params: [
8
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
9
    {
10
      "tracer" => "callTracer",
11
      "tracerConfig" => {
12
        "onlyTopCall" => false
13
      }
14
    }
15
  ],
16
  endpoint_url: "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
17
)
18

19
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_traceTransaction",
7
  params: [
8
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
9
    {
10
      "tracer" => "callTracer",
11
      "tracerConfig" => {
12
        "onlyTopCall" => false
13
      }
14
    }
15
  ],
16
  endpoint_url: "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
17
)
18

19
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_traceTransaction",
10
            Some(serde_json::json!([
11
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
12
    {
13
        "tracer": "callTracer",
14
        "tracerConfig": {
15
            "onlyTopCall": false
16
        }
17
    }
18
])),
19
            None,
20
            Some("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/".into()),
21
        )
22
        .await?;
23

24
    println!("{result}");
25
    Ok(())
26
}

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_traceTransaction",
10
            Some(serde_json::json!([
11
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
12
    {
13
        "tracer": "callTracer",
14
        "tracerConfig": {
15
            "onlyTopCall": false
16
        }
17
    }
18
])),
19
            None,
20
            Some("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/".into()),
21
        )
22
        .await?;
23

24
    println!("{result}");
25
    Ok(())
26
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'debug_traceTransaction',
4
    params: ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":false}}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/', {
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_traceTransaction',
4
    params: ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":false}}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/', {
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.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceTransaction",
9
  "params": [
10
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
11
    {
12
      "tracer": "callTracer",
13
      "tracerConfig": {
14
        "onlyTopCall": False
15
      }
16
    }
17
  ],
18
  "id": 1
19
})
20
headers = {
21
  'Content-Type': 'application/json'
22
}
23

24
response = requests.request("POST", url, headers=headers, data=payload)
25

26
print(response.text)

1
import requests
2
import json
3

4
url = "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
5

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceTransaction",
9
  "params": [
10
    "0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",
11
    {
12
      "tracer": "callTracer",
13
      "tracerConfig": {
14
        "onlyTopCall": False
15
      }
16
    }
17
  ],
18
  "id": 1
19
})
20
headers = {
21
  'Content-Type': 'application/json'
22
}
23

24
response = requests.request("POST", url, headers=headers, data=payload)
25

26
print(response.text)

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

5
uri = URI("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceTransaction",
11
  params: ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":false}}]
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.flare-mainnet.quiknode.pro/ext/bc/C/rpc/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceTransaction",
11
  params: ["0x4ccfe86772a2af6036829bb7893d86d9822ab8dc187d7e58ef92309660a02c4d",{"tracer":"callTracer","tracerConfig":{"onlyTopCall":false}}]
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
    "calls": [
6
      {
7
        "from": "0x4200000000000000000000000000000000000015",
8
        "gas": "0xe9b52",
9
        "gasUsed": "0x3fdf",
10
        "input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
11
        "to": "0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30015",
12
        "type": "DELEGATECALL",
13
        "value": "0x0"
14
      }
15
    ],
16
    "from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
17
    "gas": "0xf4240",
18
    "gasUsed": "0xab96",
19
    "input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
20
    "to": "0x4200000000000000000000000000000000000015",
21
    "type": "CALL",
22
    "value": "0x0"
23
  }
24
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "calls": [
6
      {
7
        "from": "0x4200000000000000000000000000000000000015",
8
        "gas": "0xe9b52",
9
        "gasUsed": "0x3fdf",
10
        "input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
11
        "to": "0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30015",
12
        "type": "DELEGATECALL",
13
        "value": "0x0"
14
      }
15
    ],
16
    "from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
17
    "gas": "0xf4240",
18
    "gasUsed": "0xab96",
19
    "input": "0x440a5e20000007d0000dbba0000000000000000b00000000672cc02300000000014282c2000000000000000000000000000000000000000000000000000000032b5a2481000000000000000000000000000000000000000000000000000000000007dcc27f63f53bba0ae499651943bdda527a116df9f2529fd15b88be3b9bc46094d9ad0000000000000000000000002f60a5184c63ca94f82a27100643dbabe4f3f7fd",
20
    "to": "0x4200000000000000000000000000000000000015",
21
    "type": "CALL",
22
    "value": "0x0"
23
  }
24
}

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