账户余额 API
## 获取账户余额
实时了解当前账户余额
```bash
curl https://API_ENDPOINT/v1/account \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $API_KEY" \
```
返回:
```json
{
"balance" : "9452.12",
"usage" : [
{
"amount" : "-213.32",
"day" : "20230303"
},
{
"amount" : "-100.02",
"day" : "20230302"
},
{
"amount" : "-179.89",
"day" : "20230301"
}
]
}
```