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POST
eth_getBlockTransactionCountByHash
curl --request POST \
  --url https://tempo-moderato.core.chainstack.com/a25a421add2280d53fdbc23417055501/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_getBlockTransactionCountByHash",
  "params": [
    "0x1c3830dd03a362ba82e82017a5f4e361c12fc43b64a1e4ebd2902f0c313cad7e"
  ],
  "id": 1
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "<string>"
}
Tempo API method that returns the number of transactions in a block specified by block hash.
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​
Parameters

  • blockHash — the hash of the block

​
Response

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

​
eth_getBlockTransactionCountByHash code examples

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

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

getTransactionCount("0x1c3830dd03a362ba82e82017a5f4e361c12fc43b64a1e4ebd2902f0c313cad7e");

Body

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

Block hash

​
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