# List the grades a student can be registered with

- Endpoint: `GET /v1/grade`
- Production: `https://api.main-team.org/v1/grade`
- Sandbox: `https://apisnd.main-team.org/v1/grade`
- Operation: `listGrades` (Reference data)
- Authentication: `Authorization: Bearer <token>`, a short-lived token you sign with your API key and secret
- Permission: `grade/read:$org:$ID`

## Description

Every grade a student can have, in the order they were created, a page at a time (`limit` up to 100). Reference data: the same for every organization, and a grade has the same `_id` in each of them.

`grade` on the student operations takes either a grade’s `_id` or its `name` as listed here (`"10"`); any other value is refused with `400 bad_request`. An exam accepts a set of grades, and a student is only offered the exams that accept theirs.

## Parameters

| Name | In | Required | Type | Description |
| --- | --- | --- | --- | --- |
| `page` | query | no | number | Page number. Defaults to 1. |
| `limit` | query | no | number | Items per page. Defaults to 20, max 100. |

## Response

`200` Success: `message` is "Grades fetched successfully.".

```json
{
  "success": true,
  "message": "Grades fetched successfully.",
  "pagination": {
    "page": 1,
    "limit": 20,
    "total": 57,
    "totalPages": 3
  },
  "data": [
    {
      "_id": "6650a1b2c3d4e5f6a7b8c9d4",
      "name": "10",
      "createdAt": "2026-09-01T09:30:00.000Z",
      "updatedAt": "2026-09-02T14:05:00.000Z"
    }
  ]
}
```

## Errors

| Status | Code | When |
| --- | --- | --- |
| 401 | [`unauthorized`](https://hub.main-team.org/api/errors#unauthorized) | The token is missing or malformed, is not signed with your account’s `apiSecret`, breaks the `iat` and `exp` rules, has expired or been revoked, or its account is not active. All of these answer the same. |
| 403 | [`forbidden`](https://hub.main-team.org/api/errors#forbidden) | The token is valid, but no role on your account allows `grade/read` on `mto`, the organization every operation without `:organizationId` acts on, or a role denies it. |
| 429 | [`too_many_requests`](https://hub.main-team.org/api/errors#too_many_requests) | Your account has made more than 100 requests to this operation in the current 60-second window. Wait the seconds in `Retry-After` before sending again. |
| 500 | [`internal_error`](https://hub.main-team.org/api/errors#internal_error) | Something failed on our side. Retry later, and quote `request_id` if it goes on. |

## Code samples

### curl

```bash
# $TOKEN: a short-lived token you minted with your API key and secret
curl -sS 'https://api.main-team.org/v1/grade?page=1&limit=20' \
  -H "Authorization: Bearer $TOKEN"
```

### Node.js

```js
const token = process.env.TOKEN; // a short-lived token you minted with your API key and secret

const res = await fetch('https://api.main-team.org/v1/grade?page=1&limit=20', {
  headers: {
    Authorization: `Bearer ${token}`,
  },
});
const body = await res.json();
if (!res.ok) throw new Error(`${res.status} ${body.error.code}: ${body.error.message}`);
console.log(body.data, body.pagination);
```

### PHP

```php
<?php
$token = getenv('TOKEN'); // a short-lived token you minted with your API key and secret

$ch = curl_init('https://api.main-team.org/v1/grade?page=1&limit=20');
curl_setopt_array($ch, [
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $token,
    ],
    CURLOPT_RETURNTRANSFER => true,
]);
$response = curl_exec($ch);
if ($response === false) {
    throw new RuntimeException(curl_error($ch));
}
$status = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
$body = json_decode($response, true);
if ($status >= 400) {
    $error = $body['error'];
    throw new RuntimeException("$status {$error['code']}: {$error['message']}");
}
print_r($body['data']);
print_r($body['pagination']);
```