> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/guardian/standard-registry/schemas/schema-creation-using-apis/returns-all-schemas-related-to-the-topic.md).

# Returns all Schemas related to the topic

**`GET /schemas/{topicId}`**

Returns all schemas by topicId.

**Authentication:** Bearer token required (`Authorization: Bearer <token>`)

**Permission:** `Permissions.SCHEMAS_SCHEMA_READ`

***

## Request

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `topicId` | String | Yes      | Topic ID    |

### Query Parameters

| Parameter   | Type    | Required | Description                                                           |
| ----------- | ------- | -------- | --------------------------------------------------------------------- |
| `pageIndex` | Integer | No       | The number of pages to skip before starting to collect the result set |
| `pageSize`  | Integer | No       | The number of items to return                                         |

***

## Response

### Success Response

**Status:** `200 OK`

Returns an array of schema objects. The total item count is provided in the `X-Total-Count` response header.

```json
[
  {
    "id": "f3b2a9c1e4d5678901234567",
    "uuid": "f3b2a9c1e4d5678901234567",
    "name": "Schema name",
    "status": "PUBLISHED",
    "topicId": "f3b2a9c1e4d5678901234567",
    "version": "1.0.0"
  }
]
```

### Error Responses

| Status                      | Description               |
| --------------------------- | ------------------------- |
| `401 Unauthorized`          | Missing or invalid token  |
| `403 Forbidden`             | Insufficient permissions  |
| `500 Internal Server Error` | Unexpected server failure |