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POST
/
942aad90bb6a082676497030b81e40ba
zkevm_batchNumber
curl --request POST \
  --url https://nd-363-550-219.p2pify.com/942aad90bb6a082676497030b81e40ba \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "zkevm_batchNumber",
  "params": []
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": {}
}
Polygon zkEVM API method that returns the current batch number of the chain. The Polygon zkEVM uses batch verification to improve scalability and reduce gas fees. This means that multiple transactions are grouped together and verified as a single batch using zero-knowledge proofs. The zkevm_batchNumber method returns the current batch number of the zkEVM, which is used to identify the latest batch of transactions being verified.
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​
Parameters

  • none

​
Response

  • result — the latest batch number of the Polygon zkEVM chain, encoded as hexadecimal. The batch number is updated every time a new batch of transactions is added to the chain.

​
zkevm_batchNumber code examples

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

web3.extend({
    property: 'zkEVM',
    methods: [{
      name: 'batchNumber',
      call: 'zkevm_batchNumber',
      params: 0,
      inputFormatter: null,
      outputFormatter: null
    }]
  });

async function batchNumber() {
  const output = await web3.zkEVM.batchNumber()
  console.log(output)
}

batchNumber();

Body

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

Response

200 - application/json

Returns the current batch number.

​
jsonrpc
string
​
id
integer
​
result
object
Last modified on October 19, 2025