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

# 启动自动续费租赁

> 启动持续的带宽租赁，每日扣费直到取消

## 启动自动续费租赁

将带宽委托给 TRON 地址并保持委托，按日（`1d`）费率每 24 小时从余额扣费一次，直到您取消或余额不足以支付下一天。

### 请求体

<ParamField body="target_address" type="string" required>
  目标 TRON 地址（T... 格式，34 个字符）
</ParamField>

<ParamField body="volume" type="number" required>
  保持委托的带宽数量（最小 350，最大 100,000）
</ParamField>

### 响应

<ResponseField name="id" type="number">
  唯一租赁标识符
</ResponseField>

<ResponseField name="status" type="string">
  租赁状态 —— 成功时为 `active`
</ResponseField>

<ResponseField name="txid" type="string">
  链上委托交易 id
</ResponseField>

<ResponseField name="daily_trx" type="string">
  每日扣费金额（TRX）
</ResponseField>

<ResponseField name="amount_sun" type="number">
  已委托带宽（SUN）
</ResponseField>

<ResponseField name="next_billing_at" type="string">
  下一次每日扣费的 ISO 8601 时间戳
</ResponseField>

### 扣费方式

首日立即扣费。之后每 24 小时再次扣除每日金额。若余额不足以支付下一天，租赁结束并自动取消委托——充值后会自动恢复。可随时通过取消接口取消。

### 示例

<CodeGroup>
  ```bash cURL theme={null}
  curl -X POST https://api.tronrental.com/v1/bandwidth/rentals \
    -H "X-API-Key: your_api_key" \
    -H "Content-Type: application/json" \
    -d '{
      "target_address": "TYourRecipientAddress1234567890abc",
      "volume": 350
    }'
  ```

  ```python Python theme={null}
  import requests

  resp = requests.post(
      "https://api.tronrental.com/v1/bandwidth/rentals",
      headers={"X-API-Key": "your_api_key"},
      json={"target_address": "TYourRecipientAddress1234567890abc", "volume": 350},
  )
  print(resp.json())
  ```

  ```javascript JavaScript theme={null}
  const resp = await fetch("https://api.tronrental.com/v1/bandwidth/rentals", {
    method: "POST",
    headers: { "X-API-Key": "your_api_key", "Content-Type": "application/json" },
    body: JSON.stringify({ target_address: "TYourRecipientAddress1234567890abc", volume: 350 }),
  });
  console.log(await resp.json());
  ```
</CodeGroup>

```json Response theme={null}
{
  "id": 4321,
  "status": "active",
  "txid": "abc123...",
  "daily_trx": "0.4205",
  "amount_sun": 1000000,
  "next_billing_at": "2026-06-11T04:30:00+00:00"
}
```