debug_getAccessibleState
curl --request POST \
--url https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154 \
--header 'Content-Type: application/json' \
--data '
{
"id": 1,
"jsonrpc": "2.0",
"method": "debug_getAccessibleState",
"params": [
"0x1C9C380",
"latest"
]
}
'import requests
url = "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload = {
"id": 1,
"jsonrpc": "2.0",
"method": "debug_getAccessibleState",
"params": ["0x1C9C380", "latest"]
}
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: 'debug_getAccessibleState',
params: ['0x1C9C380', 'latest']
})
};
fetch('https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154', 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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154",
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' => 'debug_getAccessibleState',
'params' => [
'0x1C9C380',
'latest'
]
]),
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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload := strings.NewReader("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
.header("Content-Type", "application/json")
.body("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
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\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": 123
}Arbitrum node API
debug_getAccessibleState | Arbitrum
Arbitrum API method that finds the first block number in a given range where the state is accessible on disk. Arbitrum via Chainstack.
POST
/
66f812de2a6724a75a51f60dd6f2a154
debug_getAccessibleState
curl --request POST \
--url https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154 \
--header 'Content-Type: application/json' \
--data '
{
"id": 1,
"jsonrpc": "2.0",
"method": "debug_getAccessibleState",
"params": [
"0x1C9C380",
"latest"
]
}
'import requests
url = "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload = {
"id": 1,
"jsonrpc": "2.0",
"method": "debug_getAccessibleState",
"params": ["0x1C9C380", "latest"]
}
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: 'debug_getAccessibleState',
params: ['0x1C9C380', 'latest']
})
};
fetch('https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154', 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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154",
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' => 'debug_getAccessibleState',
'params' => [
'0x1C9C380',
'latest'
]
]),
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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload := strings.NewReader("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\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://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
.header("Content-Type", "application/json")
.body("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
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\": \"debug_getAccessibleState\",\n \"params\": [\n \"0x1C9C380\",\n \"latest\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": 123
}Arbitrum API method that finds the first block number in a given range where the state is accessible on disk. This is useful for determining which historical states are available for querying on the node, as nodes may prune older state data.
Learn how to deploy a node with the debug and trace API methods enabled.
This method is available for post-Nitro blocks only (block 22,207,815 and later). For pre-Nitro blocks, use the
arbtrace_* methods instead.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
from— the start of the block range to search, as a hex-encoded block number or block tag.to— the end of the block range to search, as a hex-encoded block number or block tag.
Response
result— the block number (as a decimal integer) of the first block in the range where the state is accessible. Returns an error if no accessible state is found in the range.
debug_getAccessibleState code examples
const ethers = require('ethers');
const NODE_URL = "YOUR_CHAINSTACK_ENDPOINT";
const provider = new ethers.JsonRpcProvider(NODE_URL);
const debugGetAccessibleState = async (from, to) => {
const result = await provider.send("debug_getAccessibleState", [from, to]);
console.log(result);
};
debugGetAccessibleState("0x1C9C380", "latest");
from web3 import Web3
node_url = "YOUR_CHAINSTACK_ENDPOINT"
web3 = Web3(Web3.HTTPProvider(node_url))
result = web3.provider.make_request('debug_getAccessibleState', ["0x1C9C380", "latest"])
print(result)
Use case
Thedebug_getAccessibleState method is useful for determining the historical state availability of a node. Before calling state-dependent methods like debug_accountRange or debug_dumpBlock on a specific block, developers can use this method to verify that the node still has the state data for that block. This is particularly relevant for nodes that use state pruning, where older state data may have been removed.Last modified on June 22, 2026
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