# Orderbook

## Get Orderbook

<mark style="color:blue;">`GET`</mark> `https://api.swivel.exchange/v2/orderbook?underlying=x&maturity=y&depth=z`

This endpoint allows you to request an orderbook of a given depth for a specified market.\
\
Returns receiving premium and paying premium orders in descending/ascending order including *availableVolume* translated into both *premiumAvailable* and *principalAvailable*.

#### Query Parameters

| Name                                         | Type    | Description                                                   |
| -------------------------------------------- | ------- | ------------------------------------------------------------- |
| underlying<mark style="color:red;">\*</mark> | string  | The underlying token being transacted. E.g. USDC, DAI, etc.,  |
| maturity<mark style="color:red;">\*</mark>   | string  | The maturity of market in unix seconds.                       |
| depth<mark style="color:red;">\*</mark>      | integer | The number of orders on each side of the orderbook to return. |

{% tabs %}
{% tab title="200 " %}

```
{
    "receivingPremium": [
        {
            "order": {
                "key": "0xae3f59eabffcf1f15f384d5e582985d31a9aef4b181ecf56a0a37bab85013f1f",
                "maker": "0x335c0552eb130f3Dfbe6efcB4D2895aED1E9938b",
                "underlying": "0x5592EC0cfb4dbc12D3aB100b257153436a1f0FEa",
                "vault": false,
                "exit": false,
                "principal": "10000000000000000000000",
                "premium": "799000000000000000000",
                "maturity": "1669957199",
                "expiry": "1641386982"
            },
            "meta": {
                "price": "0.0799",
                "signature": "0x94836bc0b91695430e738f53e08cfef34ee1c048c42f9d846732cd867bf5376233ed86fb6b324dd9fac98c3e53c8e7f00b9c5c80fbd2d00bf8c5a177fbe8d38f1b",
                "premiumAvailable": "799000000000000000000",
                "principalAvailable": "10000000000000000000000",
                "sequence": 69218
            }
        }
    ],
    "payingPremium": [
        {
            "order": {
                "key": "0xa8181ff6e0bfa16130944d5add7220eed46f44796de7d4216728dde40376ac5e",
                "maker": "0x096Da21Ac79ae1EDbC69A07CE5c705E6c77Fec90",
                "underlying": "0x5592EC0cfb4dbc12D3aB100b257153436a1f0FEa",
                "vault": true,
                "exit": false,
                "principal": "107758620689655172413793",
                "premium": "10000000000000000000000",
                "maturity": "1669957199",
                "expiry": "1641371984"
            },
            "meta": {
                "price": "0.0928",
                "signature": "0xa4e8958193cf2cb9c70e4c4a7df9c3c7b68f89fd2f250d80e6bc9dbd9cba8c54415fb2f4d8da33c1d81d5a028233255b52adbf36bee3a2a929fb3ea3e735ff7a1c",
                "premiumAvailable": "10000000000000000000000",
                "principalAvailable": "107758620689655172413793",
                "sequence": 63593
            }
        }
    ],
    "timestamp": 1640178800,
    "nonce": 69218
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.swivel.finance/swivel-v2.0.0/developers/exchange/get/orderbook.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.