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

Parameters

object

object

The transaction call object with the following fields:

from

string

The initiating Ethereum address for the transfer, which will be null if not applicable

to

string

The address the transaction is directed to, which will be null if not applicable

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

REQUIRED

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

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

object

An object containing detailed information about the traced transaction

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

input

string

The transaction input data in hexadecimal

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_traceCall",
6
  "params": [
7
    {
8
      "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
9
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
10
    },
11
    "latest",
12
    {
13
      "tracer": "callTracer",
14
      "tracerConfig": {
15
        "onlyTopCall": false
16
      }
17
    }
18
  ],
19
  "id": 1
20
}'

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_traceCall",
6
  "params": [
7
    {
8
      "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
9
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
10
    },
11
    "latest",
12
    {
13
      "tracer": "callTracer",
14
      "tracerConfig": {
15
        "onlyTopCall": false
16
      }
17
    }
18
  ],
19
  "id": 1
20
}'

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_traceCall", [
6
    {
7
        "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
8
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
9
    },
10
    "latest",
11
    {
12
        "tracer": "callTracer",
13
        "tracerConfig": {
14
            "onlyTopCall": false
15
        }
16
    }
17
]);
18
    console.log(response);
19
}
20

21
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_traceCall", [
6
    {
7
        "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
8
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
9
    },
10
    "latest",
11
    {
12
        "tracer": "callTracer",
13
        "tracerConfig": {
14
            "onlyTopCall": false
15
        }
16
    }
17
]);
18
    console.log(response);
19
}
20

21
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_traceCall", [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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_traceCall", [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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_traceCall',
10
        params: [
11
          {
12
            "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
13
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
          },
15
          "latest",
16
          {
17
            "tracer": "callTracer",
18
            "tracerConfig": {
19
              "onlyTopCall": false
20
            }
21
          }
22
        ]
23
    })
24

25
    console.log(result)
26
}
27

28
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_traceCall',
10
        params: [
11
          {
12
            "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
13
            "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
          },
15
          "latest",
16
          {
17
            "tracer": "callTracer",
18
            "tracerConfig": {
19
              "onlyTopCall": false
20
            }
21
          }
22
        ]
23
    })
24

25
    console.log(result)
26
}
27

28
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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
10
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
  },
12
  "latest",
13
  {
14
    "tracer": "callTracer",
15
    "tracerConfig": {
16
      "onlyTopCall": false
17
    }
18
  }
19
],
20
  undefined,
21
  'https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'
22
)
23

24
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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
10
    "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
  },
12
  "latest",
13
  {
14
    "tracer": "callTracer",
15
    "tracerConfig": {
16
      "onlyTopCall": false
17
    }
18
  }
19
],
20
  undefined,
21
  'https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/'
22
)
23

24
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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
11
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
            },
13
            "latest",
14
            {
15
                "tracer": "callTracer",
16
                "tracerConfig": {
17
                    "onlyTopCall": False
18
                }
19
            }
20
        ],
21
        endpoint_url="https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/",
22
    )
23
    print(result)
24

25
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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
11
                "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
12
            },
13
            "latest",
14
            {
15
                "tracer": "callTracer",
16
                "tracerConfig": {
17
                    "onlyTopCall": False
18
                }
19
            }
20
        ],
21
        endpoint_url="https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/",
22
    )
23
    print(result)
24

25
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" => "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
10
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
    },
12
    "latest",
13
    {
14
      "tracer" => "callTracer",
15
      "tracerConfig" => {
16
        "onlyTopCall" => false
17
      }
18
    }
19
  ],
20
  endpoint_url: "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
21
)
22

23
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" => "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
10
      "data" => "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
11
    },
12
    "latest",
13
    {
14
      "tracer" => "callTracer",
15
      "tracerConfig" => {
16
        "onlyTopCall" => false
17
      }
18
    }
19
  ],
20
  endpoint_url: "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/"
21
)
22

23
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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
13
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest",
16
    {
17
        "tracer": "callTracer",
18
        "tracerConfig": {
19
            "onlyTopCall": false
20
        }
21
    }
22
])),
23
            None,
24
            Some("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/".into()),
25
        )
26
        .await?;
27

28
    println!("{result}");
29
    Ok(())
30
}

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": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
13
        "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
14
    },
15
    "latest",
16
    {
17
        "tracer": "callTracer",
18
        "tracerConfig": {
19
            "onlyTopCall": false
20
        }
21
    }
22
])),
23
            None,
24
            Some("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc/".into()),
25
        )
26
        .await?;
27

28
    println!("{result}");
29
    Ok(())
30
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'debug_traceCall',
4
    params: [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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_traceCall',
4
    params: [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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_traceCall",
9
  "params": [
10
    {
11
      "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest",
15
    {
16
      "tracer": "callTracer",
17
      "tracerConfig": {
18
        "onlyTopCall": False
19
      }
20
    }
21
  ],
22
  "id": 1
23
})
24
headers = {
25
  'Content-Type': 'application/json'
26
}
27

28
response = requests.request("POST", url, headers=headers, data=payload)
29

30
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_traceCall",
9
  "params": [
10
    {
11
      "to": "0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d",
12
      "data": "0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"
13
    },
14
    "latest",
15
    {
16
      "tracer": "callTracer",
17
      "tracerConfig": {
18
        "onlyTopCall": False
19
      }
20
    }
21
  ],
22
  "id": 1
23
})
24
headers = {
25
  'Content-Type': 'application/json'
26
}
27

28
response = requests.request("POST", url, headers=headers, data=payload)
29

30
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_traceCall",
11
  params: [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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_traceCall",
11
  params: [{"to":"0x1D80c49BbBCd1C0911346656B529DF9E5c2F783d","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"},"latest",{"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": "0x0",
6
    "error": "0x0",
7
    "from": "0x0",
8
    "gas": "0x0",
9
    "gasUsed": "0x0",
10
    "input": "0x0",
11
    "output": "0x0",
12
    "revertReason": "0x0",
13
    "to": "0x0",
14
    "type": "0x0",
15
    "value": "0x0"
16
  }
17
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": {
5
    "calls": "0x0",
6
    "error": "0x0",
7
    "from": "0x0",
8
    "gas": "0x0",
9
    "gasUsed": "0x0",
10
    "input": "0x0",
11
    "output": "0x0",
12
    "revertReason": "0x0",
13
    "to": "0x0",
14
    "type": "0x0",
15
    "value": "0x0"
16
  }
17
}

Don't have an account yet?

Create your Quicknode endpoint in seconds and start building

Get started for free