> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# eth_getTransactionByBlockNumberAndIndex | Tempo

> Tempo API method that returns information about a transaction by block number and transaction index position. Tempo via Chainstack.

Tempo API method that returns information about a transaction by block number and transaction index position.

## Parameters

* `blockNumber` — the block number (hex) or tag (`latest`, `earliest`, `pending`)
* `transactionIndex` — the transaction index position (hex)

## Response

* `result` — the transaction object, or `null` if not found:
  * `hash` — transaction hash
  * `nonce` — sender's transaction count
  * `blockHash` — hash of the containing block
  * `blockNumber` — block number
  * `transactionIndex` — index in the block
  * `from` — sender address
  * `to` — recipient address (null for contract creation)
  * `value` — value transferred in wei
  * `gas` — gas limit
  * `gasPrice` — gas price
  * `input` — transaction data
  * `v`, `r`, `s` — signature values

## `eth_getTransactionByBlockNumberAndIndex` code examples

<CodeGroup>
  ```javascript ethers.js theme={"system"}
  const ethers = require('ethers');
  const NODE_URL = "CHAINSTACK_NODE_URL";
  const provider = new ethers.JsonRpcProvider(NODE_URL);

  const getTransactionByIndex = async (blockNumber, index) => {
      const tx = await provider.send("eth_getTransactionByBlockNumberAndIndex", [
        blockNumber,
        index
      ]);

      if (tx) {
        console.log(`Transaction at block ${blockNumber}, index ${parseInt(index, 16)}:`);
        console.log(`  Hash: ${tx.hash}`);
        console.log(`  From: ${tx.from}`);
        console.log(`  To: ${tx.to || 'Contract Creation'}`);
        console.log(`  Gas: ${parseInt(tx.gas, 16)}`);
      } else {
        console.log("Transaction not found");
      }
    };

  // Get first transaction in latest block
  getTransactionByIndex("latest", "0x0");
  ```

  ```python web3.py theme={"system"}
  from web3 import Web3

  node_url = "CHAINSTACK_NODE_URL"
  web3 = Web3(Web3.HTTPProvider(node_url))

  result = web3.provider.make_request("eth_getTransactionByBlockNumberAndIndex", [
      "latest",
      "0x0"
  ])

  tx = result['result']
  if tx:
      print(f"Transaction at latest block, index 0:")
      print(f"  Hash: {tx['hash']}")
      print(f"  From: {tx['from']}")
      print(f"  To: {tx.get('to', 'Contract Creation')}")
      print(f"  Gas: {int(tx['gas'], 16)}")
  else:
      print("Transaction not found")
  ```

  ```bash cURL theme={"system"}
  curl -X POST "CHAINSTACK_NODE_URL" \
    -H "Content-Type: application/json" \
    -d '{
      "jsonrpc": "2.0",
      "method": "eth_getTransactionByBlockNumberAndIndex",
      "params": ["latest", "0x0"],
      "id": 1
    }'
  ```
</CodeGroup>


## OpenAPI

````yaml openapi/tempo_node_api/transaction_info/eth_getTransactionByBlockNumberAndIndex.json POST /
openapi: 3.0.0
info:
  title: eth_getTransactionByBlockNumberAndIndex Tempo example
  version: 1.0.0
  description: >-
    This is an API example for eth_getTransactionByBlockNumberAndIndex for
    Tempo.
servers:
  - url: https://tempo-mainnet.core.chainstack.com/c3ce2925b51f1ed18719fe8a23bbdccf
security: []
paths:
  /:
    post:
      tags:
        - Transaction info
      summary: eth_getTransactionByBlockNumberAndIndex
      operationId: tempo-eth-getTransactionByBlockNumberAndIndex
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getTransactionByBlockNumberAndIndex
                params:
                  type: array
                  items: {}
                  default:
                    - latest
                    - '0x0'
                  description: Block number (hex) or tag, and transaction index position
                id:
                  type: integer
                  default: 1
      responses:
        '200':
          description: The transaction object
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
                    description: Transaction object or null if not found

````