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POST
net_version
curl --request POST \
  --url https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "net_version",
  "params": [],
  "id": 1
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}

Documentation Index

Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt

Use this file to discover all available pages before exploring further.

Tempo API method that returns the current network ID. The Tempo mainnet network ID is 4217. The Moderato testnet network ID is 42431.
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​
Parameters

  • none

​
Response

  • result — the network ID as a string (4217 for Tempo mainnet, 42431 for Moderato testnet)

​
net_version code examples

const Web3 = require("web3");
const NODE_URL = "CHAINSTACK_NODE_URL";
const web3 = new Web3(NODE_URL);

async function getNetworkId() {
  const networkId = await web3.eth.net.getId();
  console.log(`Network ID: ${networkId}`);
}

getNetworkId()

Body

application/json
​
jsonrpc
string
default:2.0
​
method
string
default:net_version
​
params
any[]
​
id
integer
default:1

Response

200 - application/json

The network ID

​
jsonrpc
string
​
id
integer
​
result
string

The network ID (42431 for Tempo Moderato testnet)

Last modified on May 18, 2026