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POST
/
eth_blockNumber
curl --request POST \
  --url https://monad-testnet.core.chainstack.com/9c5b265f20b3ea5df4f54f70eb74b800/ \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_blockNumber",
  "params": []
}'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Monad API method that returns the latest block number of the blockchain. A block number is a hexadecimal number representing the block’s position in the blockchain.
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Parameters

  • none

​
Response

  • result — the integer value of the node’s latest block number, encoded as hexadecimal. The block number is used to identify the block’s position in the blockchain and is updated every time a new block is added to the chain.

​
eth_blockNumber code examples

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

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

async function getBlockNumber() {
  const blockNumber = await provider.getBlockNumber();
  console.log(`Latest block: ${blockNumber}`);
}

getBlockNumber();

​
Use case

A practical use case for eth_blockNumber is tracking the current state of the blockchain. Applications can use the current block number to determine time-sensitive operations, such as calculating when a time-locked contract will become executable or monitoring network progress.

Body

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

Response

200 - application/json

The latest block number.

​
jsonrpc
string
​
id
integer
​
result
string