> For the complete documentation index, see [llms.txt](https://docs.nexus.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nexus.xyz/api-reference/account/fetch-account-fees.md).

# GET /account/fees

Account fee schedule

Account fee schedule.

`operationId`: `fetchAccountFees` · CCXT method: `fetchTradingFees`

**Authentication:** `hmacAuth`.

The authenticated account's effective fee schedule — maker/taker rate (bps), fee tier, rolling 30-day traded volume, and active discounts — for parity with Hyperliquid `userFees`. This is the forward-looking *schedule* rate, not a realized average: the venue charges a per-fill fee but does not emit a realized per-fill rate. The reported rate's scope is given by `schedule` (see the schema); the account id is taken from the authenticated credentials, not a parameter. Pass `market_id` to request the exact current mirrored schedule for one intended market before the account has traded there. A selected market never falls back to a venue-modal or unrelated market rate: an unavailable or stale target returns `schedule: unknown`, zero sentinels, and an empty `markets` array.

## Parameters

| Name        | In    | Type     | Required | Default | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| ----------- | ----- | -------- | -------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `market_id` | query | `string` | No       | —       | Optional exact target for an account fee preflight. When present and currently mirrored, the response contains exactly this market in `markets` and uses its maker/taker pair as the headline. A well-formed target whose fee parameters are unavailable or stale returns HTTP 200 with `schedule: unknown`, zero headline sentinels, and no rows; it never falls back to an unrelated venue reference. A malformed value, including supplying the scalar parameter more than once, is rejected with `400` (`INVALID_MARKET_ID`). The raw query string is part of the HMAC canonical request and must be signed exactly as sent. |

## Responses

| Status | Body                                                          | Meaning                                                                                                                                                                                                                   |
| ------ | ------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `200`  | [`AccountFees`](/api-reference/guides/schemas.md#accountfees) | Account fee schedule. With `market_id`, a known target is the sole `markets` row and supplies the headline pair; an unavailable or stale target fails closed as `unknown` rather than substituting another market's rate. |
| `400`  | — *(no schema declared)*                                      | —                                                                                                                                                                                                                         |
| `401`  | — *(no schema declared)*                                      | —                                                                                                                                                                                                                         |
| `429`  | — *(no schema declared)*                                      | —                                                                                                                                                                                                                         |

## Example

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

```bash
curl -X GET 'https://exchange.nexus.xyz/api/exchange/account/fees' \
  -H 'X-API-Key: nx_7f3a1b...' \
  -H 'X-Timestamp: 1776033911836' \
  -H 'X-Signature: <hmac-sha256>'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

headers = {
    "X-API-Key": "nx_7f3a1b...",
    "X-Timestamp": "1776033911836",
    "X-Signature": "<hmac-sha256>"
}

response = requests.get("https://exchange.nexus.xyz/api/exchange/account/fees", headers=headers)
response.raise_for_status()
print(response.json())
```

{% endtab %}

{% tab title="TypeScript" %}

```typescript
const response = await fetch("https://exchange.nexus.xyz/api/exchange/account/fees", {
  method: "GET",
  headers: {
    "X-API-Key": "nx_7f3a1b...",
    "X-Timestamp": "1776033911836",
    "X-Signature": "<hmac-sha256>"
  },
});
if (!response.ok) throw new Error(`${response.status} ${await response.text()}`);
console.log(await response.json());
```

{% endtab %}
{% endtabs %}

`X-Signature` is a placeholder: it is derived from this specific request. See [Authentication](/api-reference/guides/authentication.md) for the canonical string and the HMAC rule.

***

<sub>Generated from</sub> <sub></sub><sub>`eng/apps/exchange/api/openapi.json`</sub> <sub></sub><sub>(spec</sub> <sub></sub><sub>`0.9.70`</sub><sub>). Do not edit by hand — regenerate with</sub> <sub></sub><sub>`python3 product/docs/tools/api-reference/generate.py`</sub><sub>. Hand-authored context lives in the Guides pages.</sub>


---

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