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POST
eth_getBlockTransactionCountByNumber
curl --request POST \
  --url https://tempo-moderato.core.chainstack.com/a25a421add2280d53fdbc23417055501/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_getBlockTransactionCountByNumber",
  "params": [
    "latest"
  ],
  "id": 1
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Tempo API method that returns the number of transactions in a block specified by block number.
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​
Parameters

  • blockNumber — the block number (hex) or tag (latest, earliest, pending)

​
Response

  • result — the number of transactions in the block encoded as hexadecimal

​
eth_getBlockTransactionCountByNumber code examples

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

const getTransactionCount = async (blockNumber) => {
    const count = await provider.send("eth_getBlockTransactionCountByNumber", [blockNumber]);
    console.log(`Block ${blockNumber}: ${parseInt(count, 16)} transactions`);
  };

// Get transaction count for latest block
getTransactionCount("latest");

// Get transaction count for a specific block
getTransactionCount("0x564000");

Body

application/json
​
jsonrpc
string
default:2.0
​
method
string
default:eth_getBlockTransactionCountByNumber
​
params
any[]

Block number (hex) or tag

​
id
integer
default:1

Response

200 - application/json

Transaction count in block

​
jsonrpc
string
​
id
integer
​
result
string

Number of transactions in the block encoded as hexadecimal

Last modified on January 23, 2026