> 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/developer-tools-and-resources/api-reference/apis-related-to-schema-rules/retrieve-the-schema-rules.md).

# Retrieve the schema rules

**`GET /api/v1/schema-rules`**

Returns a paginated list of all schema rules visible to the authenticated user.

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

**Permission:** `Permissions.SCHEMAS_RULE_READ`

***

## Request

### Query Parameters

| Parameter               | Type   | Required | Default | Description                                       |
| ----------------------- | ------ | -------- | ------- | ------------------------------------------------- |
| `pageIndex`             | number | No       | 0       | Zero-based page index                             |
| `pageSize`              | number | No       | 20      | Number of items to return per page                |
| `policyInstanceTopicId` | string | No       | —       | Filter results by Hedera policy instance topic ID |

***

## Response

### Success Response

**Status:** `200 OK`

The total number of matching rules is returned in the `X-Total-Count` response header.

```json
[
  {
    "id": "63e3e5e8a01b3c001234abcd",
    "uuid": "3b4e1c2d-5f6a-7890-abcd-ef1234567890",
    "name": "MRV Data Quality Rules",
    "description": "Validation rules for MRV schema fields",
    "creator": "did:hedera:testnet:zHcDLGFNymFAJiMBKnpbHDgjvTn6yZnwkPPeFhtJBECH_0.0.4532001",
    "owner": "did:hedera:testnet:zHcDLGFNymFAJiMBKnpbHDgjvTn6yZnwkPPeFhtJBECH_0.0.4532001",
    "policyId": "63e3e5e8a01b3c001234abcd",
    "policyTopicId": "0.0.4532001",
    "policyInstanceTopicId": "0.0.4532002",
    "status": "ACTIVE",
    "config": {}
  }
]
```

### Error Responses

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