# Get Cmc Order Book Market Pair

Always an empty array.

_Source: https://beta.taostats.io/docs/new/cmc/get-cmc-order-book-market-pair_

_Last reviewed: 2026-10-07_

```http
GET https://api.taostats.io/v1/cmc/order-book/market-pair
```

Requires an API key in the `Authorization` header.

Always an empty array.

## Try it

Try this request in the browser on the HTML version of this page, or use the code samples below.

### Code samples

**cURL**

```bash
curl -H "Authorization: <YOUR_API_KEY>" \
  "https://api.taostats.io/v1/cmc/order-book/market-pair"
```

**JavaScript**

```js
const response = await fetch('https://api.taostats.io/v1/cmc/order-book/market-pair', {
  headers: {
    Authorization: '<YOUR_API_KEY>',
  },
});
const data = await response.json();
```

**Python**

```python
import requests

response = requests.get(
    "https://api.taostats.io/v1/cmc/order-book/market-pair",
    headers={"Authorization": "<YOUR_API_KEY>"},
)
data = response.json()
```

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `market_pair` | query | `string` |  | Market pair identifier. Accepted for CMC-format compatibility but unused (there is no on-chain order book). Optional — matching the legacy handler, which ignores query params entirely and never 400s. |

## Responses

### `200` — Order book (always empty)

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `[].name` | `string` | Yes | Market pair name. |

Every request needs an `Authorization` header holding your API key — see [Getting started with the Taostats API](https://beta.taostats.io/docs/start-here/getting-started-with-taostats-api).