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

# Estimated Mining Fee For Transfer

> Estimated mining fee for current coin transfer

> [!NOTE]
>
> UTXO-based networks are not supported at this time. The estimated miner fee returned by the API is for reference only; the actual miner fee is subject to the on-chain result.

#### 请求参数数据结构

**time** `long` *required*

Current timestamp, e.g.: `1600128590`

**charset** `string` *required*

Encoding format, typically `utf-8`

**version** `string` *required*

Version format, typically `v2`

**symbol** `string` *required*

Unique identifier for the coin, used for transfers, e.g.：`USDTERC20`

#### 响应参数数据结构

**object**

**feeSymbol** `string`

Fee coin, e.g. BSC

**symbol** `string`

Unique identifier for the coin, e.g.：`USETERC20`

**fee** `string`

Fee, e.g. `0.00001`

**type** `integer`

Type, `0` main chain coin transfer, `1` token transfer

**ifCollection** `bool`

Whether the coin supports receive, `true` supports it, `false` does not support it

```curl cURL theme={null}
curl -X GET \
--url 'https://openapi.keysecure.io/
/v2/chain/minerfee?app_id=ea30b0bf1881a02690e7203bf855cb9f&data=dca-L22ng-RrqDkT-O1WNDR0L3kJKC6jc4rGLfC6L1nBM5A8JSv-Z74Ao5JL4HtDgU5oveunbVSPoHnnubCuPJM4MRqmKRpLGm-9M9AmpKP8AQT7XqdLR1YVKb0Rz8RYiy-Qsf_lYFunLWAcNhqAaWXC2rsN1KPVKmufwtbWlFI-ZTFbp_bYsibKAU8mC4F5tMRmMWhitysBG-VFZIni4joWAZLcGctdY9zhVZC0THqSwP27F0iaCR4Q5af5pz5iiirCsslGg0tIp15qoqcMZVN_hIav94MBcuL0I2o_Of3ut7XagG5AXGNWyFaQdfwQLM04Lt6KexOv4WyyplC4rg=='
```

```json theme={null}
[
{
    "feeSymbol":"ETH",
    "symbol":"ETH",
    "fee":"0.000255378",
    "ifCollection":true,
    "type":0
},
{
    "feeSymbol":"ETH",
    "symbol":"ETH Token",
    "fee":"0.00037216",
    "ifCollection":true,
    "type":1
}
]
```


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