debug_getBadBlocks
curl --request POST \
--url https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/ \
--header 'Content-Type: application/json' \
--data '
{
"jsonrpc": "2.0",
"method": "debug_getBadBlocks",
"params": [],
"id": 1
}
'import requests
url = "https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload = {
"jsonrpc": "2.0",
"method": "debug_getBadBlocks",
"params": [],
"id": 1
}
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({jsonrpc: '2.0', method: 'debug_getBadBlocks', params: [], id: 1})
};
fetch('https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/', 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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/",
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([
'jsonrpc' => '2.0',
'method' => 'debug_getBadBlocks',
'params' => [
],
'id' => 1
]),
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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload := strings.NewReader("{\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/")
.header("Content-Type", "application/json")
.body("{\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/")
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 \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": "<unknown>"
}Tempo node API
debug_getBadBlocks | Tempo
Tempo API method that returns a list of invalid blocks that the node has encountered. Useful for debugging consensus or block validation issues.
POST
/
debug_getBadBlocks
curl --request POST \
--url https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/ \
--header 'Content-Type: application/json' \
--data '
{
"jsonrpc": "2.0",
"method": "debug_getBadBlocks",
"params": [],
"id": 1
}
'import requests
url = "https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload = {
"jsonrpc": "2.0",
"method": "debug_getBadBlocks",
"params": [],
"id": 1
}
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({jsonrpc: '2.0', method: 'debug_getBadBlocks', params: [], id: 1})
};
fetch('https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/', 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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/",
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([
'jsonrpc' => '2.0',
'method' => 'debug_getBadBlocks',
'params' => [
],
'id' => 1
]),
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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload := strings.NewReader("{\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\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://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/")
.header("Content-Type", "application/json")
.body("{\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/")
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 \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getBadBlocks\",\n \"params\": [],\n \"id\": 1\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": "<unknown>"
}Tempo API method that returns a list of invalid blocks that the node has encountered. Useful for debugging consensus or block validation issues.
Get your own node endpoint todayStart for free and get your app to production levels immediately. No credit card required.You can sign up with your GitHub, X, Google, or Microsoft account.
Parameters
none
Response
result— an array of bad block objects that the node has encountered. Each object contains the full block data and the reason it was rejected.
debug_getBadBlocks code examples
curl -X POST "CHAINSTACK_NODE_URL" \
-H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method": "debug_getBadBlocks", "params": [], "id": 1}'
Last modified on June 22, 2026
Was this page helpful?
⌘I