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POST
web3_clientVersion
curl --request POST \
  --url https://monad-testnet.core.chainstack.com/9c5b265f20b3ea5df4f54f70eb74b800/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "web3_clientVersion",
  "params": []
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Monad API method that returns the current client version. This method is useful for identifying the node implementation and version you are connected to.
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​
Parameters

  • none

​
Response

  • result — a string representing the current client version.

​
web3_clientVersion code examples

const { ethers } = require("ethers");

const provider = new ethers.JsonRpcProvider("CHAINSTACK_NODE_URL");

async function getClientVersion() {
  const clientVersion = await provider.send("web3_clientVersion", []);
  console.log(`Client version: ${clientVersion}`);
}

getClientVersion();

​
Use case

A practical use case for web3_clientVersion is implementing compatibility checks in your application to ensure the connected node supports required features, or logging node information for debugging and monitoring purposes.

Body

application/json
​
id
integer
default:1
​
jsonrpc
string
default:2.0
​
method
string
default:web3_clientVersion
​
params
array

Response

200 - application/json

The current client version.

​
jsonrpc
string
​
id
integer
​
result
string
Last modified on May 18, 2026