# Usage broken down by day

URL: https://docs.fxapis.com/api-reference/billing/usage-broken-down-by-day

> Usage broken down by day. For a chart, or for checking an invoice line against the day it came from.

`GET https://api.fxapis.com/v1/billing/usage/daily`

For a chart, or for checking an invoice line against the day it came from.

Authentication: `Authorization: Bearer <API key>`.

#### Responses

- `200`
- `401`

Failures return `{ "error": { "code", "message" } }`; every code is listed at https://docs.fxapis.com/errors.

#### 200 response fields

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `data` | object[] | no |  |
| `data[].day` | string | no | UTC date, as YYYY-MM-DD. |
| `data[].metric` | string | no |  |
| `data[].count` | integer | no |  |