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

blockHash

string

REQUIRED

The hash of the block to be traced

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

diffMode

boolean

When set to true, diff mode returns the differences between the transaction's pre and post-state. The result object will contain a pre and a post object.

Returns

type

array

The type of the call

from

The address the transaction is sent from

to

The address the transaction is directed to

value

The integer of the value sent with this transaction

gas

The integer of the gas provided for the transaction execution

gasUsed

The integer of the gas used

input

The data given at the time of input

output

The data which is returned as an output

calls

A list of sub-calls

Request

1
curl -X POST "https://docs-demo.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "debug_traceBlockByHash",
6
  "params": [
7
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
8
    {
9
      "tracer": "callTracer"
10
    }
11
  ],
12
  "id": 1
13
}'

1
curl -X POST "https://docs-demo.quiknode.pro/" \
2
  -H "Content-Type: application/json" \
3
  -d '{
4
  "jsonrpc": "2.0",
5
  "method": "debug_traceBlockByHash",
6
  "params": [
7
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
8
    {
9
      "tracer": "callTracer"
10
    }
11
  ],
12
  "id": 1
13
}'

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.quiknode.pro/");
5
    const response = await provider.send("debug_traceBlockByHash", [
6
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
7
    {
8
        "tracer": "callTracer"
9
    }
10
]);
11
    console.log(response);
12
}
13

14
main();

1
import { ethers } from "ethers";
2

3
async function main() {
4
    const provider = new ethers.JsonRpcProvider("https://docs-demo.quiknode.pro/");
5
    const response = await provider.send("debug_traceBlockByHash", [
6
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
7
    {
8
        "tracer": "callTracer"
9
    }
10
]);
11
    console.log(response);
12
}
13

14
main();

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "debug_traceBlockByHash",
7
    "params": [
8
        "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
        {
10
            "tracer": "callTracer"
11
        }
12
    ],
13
    "id": "1"
14
}
15

16
response = client.send(payload.to_json)
17
puts response

1
require 'eth'
2

3
client = Eth::Client.create 'https://docs-demo.quiknode.pro/'
4
payload = {
5
    "jsonrpc": "2.0",
6
    "method": "debug_traceBlockByHash",
7
    "params": [
8
        "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
        {
10
            "tracer": "callTracer"
11
        }
12
    ],
13
    "id": "1"
14
}
15

16
response = client.send(payload.to_json)
17
puts response

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.quiknode.pro/'))
3
response = w3.provider.make_request("debug_traceBlockByHash", ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"tracer":"callTracer"}])
4
print(response)

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.quiknode.pro/'))
3
response = w3.provider.make_request("debug_traceBlockByHash", ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"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.quiknode.pro/')
6
    })
7

8
    const result = await client.request({
9
        method: 'debug_traceBlockByHash',
10
        params: [
11
          "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
12
          {
13
            "tracer": "callTracer"
14
          }
15
        ]
16
    })
17

18
    console.log(result)
19
}
20

21
main()

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

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

8
    const result = await client.request({
9
        method: 'debug_traceBlockByHash',
10
        params: [
11
          "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
12
          {
13
            "tracer": "callTracer"
14
          }
15
        ]
16
    })
17

18
    console.log(result)
19
}
20

21
main()

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

3
const qn = new QuicknodeSdk({})
4

5
const result = await qn.rpc.call(
6
  'debug_traceBlockByHash',
7
  [
8
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
  {
10
    "tracer": "callTracer"
11
  }
12
],
13
  undefined,
14
  'https://docs-demo.quiknode.pro/'
15
)
16

17
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_traceBlockByHash',
7
  [
8
  "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
  {
10
    "tracer": "callTracer"
11
  }
12
],
13
  undefined,
14
  'https://docs-demo.quiknode.pro/'
15
)
16

17
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_traceBlockByHash",
8
        [
9
            "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
10
            {
11
                "tracer": "callTracer"
12
            }
13
        ],
14
        endpoint_url="https://docs-demo.quiknode.pro/",
15
    )
16
    print(result)
17

18
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_traceBlockByHash",
8
        [
9
            "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
10
            {
11
                "tracer": "callTracer"
12
            }
13
        ],
14
        endpoint_url="https://docs-demo.quiknode.pro/",
15
    )
16
    print(result)
17

18
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_traceBlockByHash",
7
  params: [
8
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
    {
10
      "tracer" => "callTracer"
11
    }
12
  ],
13
  endpoint_url: "https://docs-demo.quiknode.pro/"
14
)
15

16
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_traceBlockByHash",
7
  params: [
8
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
9
    {
10
      "tracer" => "callTracer"
11
    }
12
  ],
13
  endpoint_url: "https://docs-demo.quiknode.pro/"
14
)
15

16
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_traceBlockByHash",
10
            Some(serde_json::json!([
11
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
12
    {
13
        "tracer": "callTracer"
14
    }
15
])),
16
            None,
17
            Some("https://docs-demo.quiknode.pro/".into()),
18
        )
19
        .await?;
20

21
    println!("{result}");
22
    Ok(())
23
}

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_traceBlockByHash",
10
            Some(serde_json::json!([
11
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
12
    {
13
        "tracer": "callTracer"
14
    }
15
])),
16
            None,
17
            Some("https://docs-demo.quiknode.pro/".into()),
18
        )
19
        .await?;
20

21
    println!("{result}");
22
    Ok(())
23
}

1
const body = {
2
    jsonrpc: '2.0',
3
    method: 'debug_traceBlockByHash',
4
    params: ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"tracer":"callTracer"}],
5
    id: 1
6
}
7

8
async function main() {
9
    const response = await fetch('https://docs-demo.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_traceBlockByHash',
4
    params: ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"tracer":"callTracer"}],
5
    id: 1
6
}
7

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

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceBlockByHash",
9
  "params": [
10
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
11
    {
12
      "tracer": "callTracer"
13
    }
14
  ],
15
  "id": 1
16
})
17
headers = {
18
  'Content-Type': 'application/json'
19
}
20

21
response = requests.request("POST", url, headers=headers, data=payload)
22

23
print(response.text)

1
import requests
2
import json
3

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

6
payload = json.dumps({
7
  "jsonrpc": "2.0",
8
  "method": "debug_traceBlockByHash",
9
  "params": [
10
    "0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",
11
    {
12
      "tracer": "callTracer"
13
    }
14
  ],
15
  "id": 1
16
})
17
headers = {
18
  'Content-Type': 'application/json'
19
}
20

21
response = requests.request("POST", url, headers=headers, data=payload)
22

23
print(response.text)

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

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

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceBlockByHash",
11
  params: ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"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.quiknode.pro/")
6

7
payload = {
8
  jsonrpc: "2.0",
9
  id: 1,
10
  method: "debug_traceBlockByHash",
11
  params: ["0x97b49e43632ac70c46b4003434058b18db0ad809617bd29f3448d46ca9085576",{"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
    {
6
      "type": "CALL",
7
      "from": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
8
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
9
      "value": "0x0",
10
      "gas": "0x30d40",
11
      "gasUsed": "0x7148",
12
      "input": "0xa9059cbb0000000000000000000000002c46b28e4bac6b0188baf722f17f5f36e217033000000000000000000000000000000000000000000000000058d15e176280000",
13
      "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
14
      "calls": [
15
        {
16
          "type": "STATICCALL",
17
          "from": "0x6b175474e89094c44da98b954eedeac495271d0f",
18
          "to": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
19
          "gas": "0x2e010",
20
          "gasUsed": "0x1388",
21
          "input": "0x70a08231000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
22
          "output": "0x0000000000000000000000000000000000000000000b56ea85ae38dd000000",
23
          "calls": []
24
        }
25
      ]
26
    },
27
    {
28
      "type": "CALL",
29
      "from": "0x81b7e08f65bdf5648606c89998a9cc8164397647",
30
      "to": "0x5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f",
31
      "value": "0x0",
32
      "gas": "0x2a3a0",
33
      "gasUsed": "0x123b4",
34
      "input": "0xe8e33700000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
35
      "output": "0x000000000000000000000000f7ae43fabe91b091e3bae07d91b5c8758e97c12b",
36
      "calls": []
37
    }
38
  ]
39
}

1
{
2
  "jsonrpc": "2.0",
3
  "id": 1,
4
  "result": [
5
    {
6
      "type": "CALL",
7
      "from": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
8
      "to": "0x6b175474e89094c44da98b954eedeac495271d0f",
9
      "value": "0x0",
10
      "gas": "0x30d40",
11
      "gasUsed": "0x7148",
12
      "input": "0xa9059cbb0000000000000000000000002c46b28e4bac6b0188baf722f17f5f36e217033000000000000000000000000000000000000000000000000058d15e176280000",
13
      "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
14
      "calls": [
15
        {
16
          "type": "STATICCALL",
17
          "from": "0x6b175474e89094c44da98b954eedeac495271d0f",
18
          "to": "0x8894e0a0c962cb723c1976a4421c95949be2d4e3",
19
          "gas": "0x2e010",
20
          "gasUsed": "0x1388",
21
          "input": "0x70a08231000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
22
          "output": "0x0000000000000000000000000000000000000000000b56ea85ae38dd000000",
23
          "calls": []
24
        }
25
      ]
26
    },
27
    {
28
      "type": "CALL",
29
      "from": "0x81b7e08f65bdf5648606c89998a9cc8164397647",
30
      "to": "0x5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f",
31
      "value": "0x0",
32
      "gas": "0x2a3a0",
33
      "gasUsed": "0x123b4",
34
      "input": "0xe8e33700000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
35
      "output": "0x000000000000000000000000f7ae43fabe91b091e3bae07d91b5c8758e97c12b",
36
      "calls": []
37
    }
38
  ]
39
}

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