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

# GET /instrument/{instrument\_name}

Returns the instrument information for the given instrument.

`GET https://api.aevo.xyz/instrument/{instrument_name}`

## Example Request

```bash
curl --request GET \
     --url https://api.aevo.xyz/instrument/{instrument_name} \
     --header 'accept: application/json'
```

## Responses

**`200`** — Instrument information.

| Field                         | Type   | Required | Description                                                                                |
| ----------------------------- | ------ | -------- | ------------------------------------------------------------------------------------------ |
| `asset`                       | string | Yes      | Name of underlying asset. Example: `ETH`                                                   |
| `instrument_id`               | string | Yes      | Instrument ID number. Example: `12`                                                        |
| `instrument_name`             | string | Yes      | Instrument name. Example: `ETH-30JUN23-1600-C`                                             |
| `instrument_type`             | string | Yes      | Type of instrument. Example: `OPTION`                                                      |
| `mark_price`                  | string | Yes      | Mark price of the instrument. Example: `12.23`                                             |
| `index_price`                 | string | Yes      | Current index price of the asset. Example: `12.23`                                         |
| `forward_price`               | string | Yes      | Current forward price of the asset. Example: `12.23`                                       |
| `initial_margin_fraction`     | string | Yes      | Initial margin fraction/rate for the instrument (e.g., 0.1 means 10%). Example: `0.1`      |
| `maintenance_margin_fraction` | string | Yes      | Maintenance margin fraction/rate for the instrument (e.g., 0.05 means 5%). Example: `0.05` |
| `best_bid`                    | object | No       |                                                                                            |
| `best_ask`                    | object | No       |                                                                                            |
| `markets`                     | object | No       |                                                                                            |
| `greeks`                      | object | No       |                                                                                            |

**`400`** — Bad request.

| Field   | Type   | Required | Description                                     |
| ------- | ------ | -------- | ----------------------------------------------- |
| `error` | string | Yes      | Error message. Example: `ERR_MALFORMED_REQUEST` |

**`429`** — Rate limit exceeded.

| Field   | Type   | Required | Description                                   |
| ------- | ------ | -------- | --------------------------------------------- |
| `error` | string | Yes      | Error message. Example: `RATE_LIMIT_EXCEEDED` |

**`500`** — Internal server error.

| Field   | Type   | Required | Description                              |
| ------- | ------ | -------- | ---------------------------------------- |
| `error` | string | Yes      | Error message. Example: `INTERNAL_ERROR` |


---

# Agent Instructions
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## 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, and the optional `goal` query parameter:

```
GET https://www.aevo.xyz/docs/api-reference/urls/public-api/getinstrumentinstrumentname.md?ask=<question>&goal=<endgoal>
```

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