eth_protocolVersion
curl --request POST \
--url https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/ \
--header 'Content-Type: application/json' \
--data '
{
"jsonrpc": "2.0",
"method": "eth_protocolVersion",
"params": [],
"id": 1
}
'import requests
url = "https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload = {
"jsonrpc": "2.0",
"method": "eth_protocolVersion",
"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: 'eth_protocolVersion', 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' => 'eth_protocolVersion',
'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\": \"eth_protocolVersion\",\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\": \"eth_protocolVersion\",\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\": \"eth_protocolVersion\",\n \"params\": [],\n \"id\": 1\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": "<unknown>"
}Tempo node API
eth_protocolVersion | Tempo
Tempo API method that returns the current Ethereum protocol version. result — the current Ethereum protocol version, encoded as hexadecimal.
POST
/
eth_protocolVersion
curl --request POST \
--url https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/ \
--header 'Content-Type: application/json' \
--data '
{
"jsonrpc": "2.0",
"method": "eth_protocolVersion",
"params": [],
"id": 1
}
'import requests
url = "https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/"
payload = {
"jsonrpc": "2.0",
"method": "eth_protocolVersion",
"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: 'eth_protocolVersion', 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' => 'eth_protocolVersion',
'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\": \"eth_protocolVersion\",\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\": \"eth_protocolVersion\",\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\": \"eth_protocolVersion\",\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 the current Ethereum protocol version.
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Parameters
none
Response
result— the current Ethereum protocol version, encoded as hexadecimal.
eth_protocolVersion code examples
curl -X POST "CHAINSTACK_NODE_URL" \
-H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method": "eth_protocolVersion", "params": [], "id": 1}'
Last modified on July 7, 2026
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