---
title: Virtual account blockchain fees
parent: API
layout: page
---

# Api/VirtualAccountBlockchainFeesApi

[Virtual account blockchain fees API Reference](https://apidoc.tatum.io/tag/Virtual-account-blockchain-fees/)

```php
// Set your API Keys 👇 here
$sdk = new \Tatum\Sdk();

// MainNet API Call
$sdk->mainnet()->api()->virtualAccountBlockchainFees();

// TestNet API Call
$sdk->testnet()->api()->virtualAccountBlockchainFees();
```

## Methods

Method | Description
------------- | -------------
[**offchainEstimateFee()**](#offchainestimatefee) | Estimate ledger to blockchain transaction fee


## `offchainEstimateFee()`

### Example

{: .new-title }
> #️⃣ Execute command in terminal 
> 
> [✨ php -f **offchainEstimateFee.php**](https://github.com/tatumio/tatum-php/blob/master/examples/Api/VirtualAccountBlockchainFeesApi/offchainEstimateFee.php){: .btn .btn-green .mt-4}

### Request

> **POST** `/v3/offchain/blockchain/estimate`

### Type signature

```php
(new \Tatum\Sdk())->{mainnet/testnet}()->api()->virtualAccountBlockchainFees()->offchainEstimateFee(
    \Tatum\Model\OffchainEstimateFee $offchain_estimate_fee
): \Tatum\Model\FeeBtc
```

### Parameters

Name | Type | Description  | Notes
------------- | ------------- | ------------- | -------------
 **$offchain_estimate_fee** | [**\Tatum\Model\OffchainEstimateFee**](../../Model/OffchainEstimateFee) |  |

### Return type

[**\Tatum\Model\FeeBtc**](../../Model/FeeBtc)

### Description

> Estimate ledger to blockchain transaction fee

#### 2 credits per API call.

Estimate current transaction fee for ledger to blockchain transaction. Supported blockchains: 
* Bitcoin
* Litecoin
* Dogecoin

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