> For the complete documentation index, see [llms.txt](/llms.txt).

# `eth_getTransactionByBlockNumberAndIndex`

Returns information about a transaction given block number and transaction index position. This method uses [150 credits](/services/get-started/pricing/) from your daily balance.

## Parameters[​](#parameters "Direct link to Parameters")

- `block parameter`: [_Required_] A hexadecimal block number, or one of the string tags `latest`, `earliest`, `pending`, `safe`, or `finalized`. See the [default block parameter](https://ethereum.org/en/developers/docs/apis/json-rpc/#default-block).
- `transaction index position`: [_Required_] A hexadecimal of the integer representing the position in the block.

## Returns[​](#returns "Direct link to Returns")

A transaction object, or null when no transaction was found. The transaction object will consist of the following keys and their values:

- `accessList`: [_optional_] A list of addresses and storage keys accessed by the transaction. See [access list transactions](/services/concepts/transaction-types/#access-list-transactions).
- `blockHash`: 32 bytes. A hash of the block including this transaction. `null` when it's pending.
- `blockNumber`: The number of the block including this transaction. `null` when it's pending.
- `chainID`: [_optional_] chain ID specifying the network. Returned only for [EIP-1559 transactions](/services/concepts/transaction-types/#eip-1559-transactions).
- `from`: 20 bytes. The address of the sender.
- `gas`: Gas provided by the sender.
- `gasPrice`: Gas price provided by the sender in wei.
- `hash`: 32 bytes. The hash of the transaction.
- `input`: The data sent along with the transaction.
- `maxPriorityFeePerGas`: [_optional_] Maximum fee, in wei, the sender is willing to pay per gas above the base fee. See [EIP-1559 transactions](/services/concepts/transaction-types/#eip-1559-transactions).
- `maxFeePerGas`: [_optional_] Maximum total fee (base fee + priority fee), in wei, the sender is willing to pay per gas. See [EIP-1559 transactions](/services/concepts/transaction-types/#eip-1559-transactions).
- `nonce`: The number of transactions made by the sender prior to this one.
- `r`: 32 bytes. The ECDSA signature `r`.
- `s`: 32 bytes. The ECDSA signature `s`.
- `to`: 20 bytes. The address of the receiver. `null` when it's a contract creation transaction.
- `transactionIndex`: The transaction's index position in the block, in hexadecimal. `null` when it's pending.
- `type`: The [transaction type](/services/concepts/transaction-types/).
- `v`: The ECDSA recovery ID.
- `value`: The value transferred in wei.

## Example[​](#example "Direct link to Example")

Replace `<YOUR-API-KEY>` with an API key from your [Infura dashboard](https://app.infura.io/).

### Request[​](#request "Direct link to Request")

- curl
- WSS

```
curl https://optimism-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "method": "eth_getTransactionByBlockNumberAndIndex", "params": ["0x5BAD55", "0x0"], "id": 1}'

```

```
wscat -c wss://optimism-mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "method": "eth_getTransactionByBlockNumberAndIndex", "params": ["0x5BAD55","0x0"], "id": 1}'

```

### Response[​](#response "Direct link to Response")

- JSON

```
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "blockHash": "0xb3b20624f8f0f86eb50dd04688409e5cea4bd02d700bf6e79e9384d47d6a5a35",
    "blockNumber": "0x5bad55",
    "chainId": "0x1",
    "from": "0xfbb1b73c4f0bda4f67dca266ce6ef42f520fbb98",
    "gas": "0x249f0",
    "gasPrice": "0x174876e800",
    "hash": "0x8784d99762bccd03b2086eabccee0d77f14d05463281e121a62abfebcf0d2d5f",
    "input": "0x6ea056a9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000bd8d7fa6f8cc00",
    "nonce": "0x5e4724",
    "r": "0xd1556332df97e3bd911068651cfad6f975a30381f4ff3a55df7ab3512c78b9ec",
    "s": "0x66b51cbb10cd1b2a09aaff137d9f6d4255bf73cb7702b666ebd5af502ffa4410",
    "to": "0x4b9c25ca0224aef6a7522cabdbc3b2e125b7ca50",
    "transactionIndex": "0x0",
    "type": "0x0",
    "v": "0x25",
    "value": "0x0"
  }
}

```