starknet_traceBlockTransactions

curl --request POST \
  --url https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "starknet_traceBlockTransactions",
  "params": {
    "block_id": {
      "block_number": 456600
    }
  }
}
'

import requests

url = "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d"

payload = {
    "id": 1,
    "jsonrpc": "2.0",
    "method": "starknet_traceBlockTransactions",
    "params": { "block_id": { "block_number": 456600 } }
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 1,
    jsonrpc: '2.0',
    method: 'starknet_traceBlockTransactions',
    params: {block_id: {block_number: 456600}}
  })
};

fetch('https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => 1,
    'jsonrpc' => '2.0',
    'method' => 'starknet_traceBlockTransactions',
    'params' => [
        'block_id' => [
                'block_number' => 456600
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d"

	payload := strings.NewReader("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

POST

365cf697a3ad6d950b4c4a911e2e4f4d

starknet_traceBlockTransactions

curl --request POST \
  --url https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "starknet_traceBlockTransactions",
  "params": {
    "block_id": {
      "block_number": 456600
    }
  }
}
'

import requests

url = "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d"

payload = {
    "id": 1,
    "jsonrpc": "2.0",
    "method": "starknet_traceBlockTransactions",
    "params": { "block_id": { "block_number": 456600 } }
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 1,
    jsonrpc: '2.0',
    method: 'starknet_traceBlockTransactions',
    params: {block_id: {block_number: 456600}}
  })
};

fetch('https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => 1,
    'jsonrpc' => '2.0',
    'method' => 'starknet_traceBlockTransactions',
    'params' => [
        'block_id' => [
                'block_number' => 456600
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d"

	payload := strings.NewReader("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://starknet-mainnet.core.chainstack.com/365cf697a3ad6d950b4c4a911e2e4f4d")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"starknet_traceBlockTransactions\",\n  \"params\": {\n    \"block_id\": {\n      \"block_number\": 456600\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

Starknet OpenRPC specFor the latest version of the publicly maintained OpenRPC spec, see the Starknet specs GitHub repo.

Starknet API method that returns the execution trace of all transactions in a given block. It provides a detailed execution trace for each transaction in the specified block. This can be useful for debugging and analysis purposes, as it allows developers to see the exact sequence of operations that were performed during the execution of each transaction.

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Parameters

block_id — the hash of the requested block, or number (height) of the requested block, or a block tag:
- block_hash — hash of the block.
- block_number — block number, accept integer.
- block_tag — latest for the latest one added to the chain or pending for the pending one.

Response

result — the execution trace of all transactions in the block, represented as a list of transaction traces.

Use case

A practical use case for starknet_traceBlockTransactions is to analyze the execution of transactions in a specific block. This can be useful for debugging purposes, as it allows developers to understand the sequence of operations that were performed during the execution of each transaction.

Deprecated feeder gateway method

The feeder gateway was deprecated on December 11, 2023. Example of the call you had to make to the feeder gateway before the deprecation:

Shell

curl 'https://alpha-mainnet.starknet.io/feeder_gateway/get_block_traces?blockNumber=456600'

Body

application/json

integer

default:1

jsonrpc

string

default:2.0

method

string

default:starknet_traceBlockTransactions

params

object

Show child attributes

Response

200

Successful response

Last modified on June 22, 2026

APIs introduction

Node APIs

Faucet API

Chainstack platform API

starknet_traceBlockTransactions | Starknet

Parameters

Response

Use case

Deprecated feeder gateway method

Body

Response

​Parameters

​Response

​Use case

​Deprecated feeder gateway method

Body

Response

Parameters

Response

Use case

Deprecated feeder gateway method