# starknet_estimateFee

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# `starknet_estimateFee`

Returns an estimate of the fee required for the network to process the specified transactions, at
the specified block.

## Parameters

- `request`: (array) [*Required*] A sequence of
  [Starknet transactions](https://docs.starknet.io/documentation/architecture_and_concepts/Network_Architecture/transactions/)
  to estimate gas fees for.
  If multiple transactions are provided, each transaction is simulated on the state resulting from
  applying the previous transactions.
- `block_id`: [*Required*] The block parameter object containing one of the following:
  - `block_hash`: (string) Block hash.
  - `block_number`: (integer) Decimal block number.
  - One of the string tags `latest` or `pending`.

## Returns

A sequence of fee estimates corresponding to the sequence of requested transactions.
Each fee estimate object contains:

- `gas_consumed`: The Ethereum gas consumption of the transaction.
- `gas_price`: The gas price (in gwei) that was used in the cost estimation.
- `overall_fee`: The estimated fee for the transaction (in gwei), product of `gas_consumed` and `gas_price`.

## Example

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

### Request

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<TabItem value="curl">

```bash
curl https://starknet-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "starknet_estimateFee",
    "params": {
      "request": [{
        "type": "INVOKE",
        "max_fee": "0x28ed6103d0000",
        "version": "0x1",
        "signature": [
          "0x42527ffe9912b338983cbed67e139cfcc26a4d8cf1d1c2a85e4125fdf5f59ed", "0x636147d06fefd02ed37984b752556d4b9aefdac1a50b3df0528ec7c201ad84b"
        ],
        "sender_address": "0x13e3ca9a377084c37dc7eacbd1d9f8c3e3733935bcbad887c32a0e213cd6fe0",
        "calldata": [
          "0x2",
          "0x57c4b510d66eb1188a7173f31cccee47b9736d40185da8144377b896d5ff3",
          "0x2f0b3c5710379609eb5495f1ecd348cb28167711b73609fe565a72734550354",
          "0x0",
          "0x1",
          "0x57c4b510d66eb1188a7173f31cccee47b9736d40185da8144377b896d5ff3",
          "0x2f0b3c5710379609eb5495f1ecd348cb28167711b73609fe565a72734550354",
          "0x1",
          "0x1",
          "0x2",
          "0x0",
          "0x1"
        ],
        "nonce": "0x1"
      }],
      "block_id": {
        "block_number": 59999
      }
    },
    "id": 0
  }'
```

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### Response

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```json
{
  "jsonrpc": "2.0",
  "result": [
    {
      "gas_consumed": "0x41de",
      "gas_price": "0x67edb4f57",
      "overall_fee": "0x1abd7b153e472"
    }
  ],
  "id": 0
}
```

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